1
2
3
4
17×40= 100-63= 3.2+1.68= 2.8×0.4= 14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35= 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 =
2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4= 14-7.4=
1.92÷0.04= 0.32×500= 0.65+4.35= 10-5.4= 4÷20= 3.5×200= 1.5-0.06=
5
1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 =
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)=
7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35= 10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5=
5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5= 6÷12= 0.87-0.49= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 =
2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
6
17×40= 100-63= 3.2+1.68= 2.8×0.4=
6÷12= 0.87-0.49= 17×40= 100-63=
3.2+1.68= 2.8×0.4= 14-7.4= 1.92÷0.04= 0.32×500=
0.65+4.35=10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8=
4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 =
2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
6÷12= 0.87-0.49= 17×40= 100-63= 3.2+1.68= 2.8×0.4= 14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15=
0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5=
7
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5= 6÷12= 0.87-0.49= 17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35= 10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)=
7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 39×4= 51×9= 77×7= 874×3= 304×5= 106×10= 178×3= 78×9= 1.573×6= 3.52×100= 3.54×8= 43.87×4= 163×3= 724×7= 43.7×8= 46.9×8=
78×9= 250×0.4=
8
24×5= 37×8= 104×5= 847×4= 8×42= 5.78×92= 78×2= 245×0= 306×103×0= 132×6= 350×1000= 317×4= 1.52×6= 125×0.8= 302×783×0= 264×8= 5.76×9= 3875×0= 1.854×0×100= 937×4= 285×4= 134×3=
125×8= 25×4= 300×52= 5×42= 1.35×9= 15×8= 125×4= 8.456×1000= 21×8= 32×0.1= 572×8= 372×0= 153×46= 173×10= 15×80= 3 652007×0=
384÷4= 888÷74= 592÷37= 384÷32= 1846÷10=
468÷39= 1460÷20= 50÷2= 78÷4= 24.5÷14= 49.5÷3= 153÷0= 462÷5= 374÷10= 73÷9= 10÷3= 27×3= 90÷15= 48÷4= 640÷16= 39÷3= 24×20= 32×3= 48÷16= 12×8= 27×3= 56÷14=
9
24÷8= 14×2= 83-45= 560÷80= 96÷24= 40÷20= 40×30= 37+26= 76-39= 605+59= 30×23= 12×8= 27+32= 48+27= 4500×20= 73+15 = 120×600 = 200×360= 6800×400= 280+270= 4×2500= 6000÷40=
5×1280= 4.3+2.7= 0.75+0.25= 4-0.26=
0.35+2.7= 4.6-1.9= 0.83-0.3= 3+0.05=
7.2-3.8= 0.07+0.6= 1.39-0.39= 10-5.4=
4.7+2.3= 0.64÷0.8= 2.4÷0.8= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32=
1.4×0.5= 0.75×100= 0.02×0.5= 3.6÷0.3=
6.3÷7= 5.6÷100= 0.75÷0.25= 0.125×8=
4.8÷0.3= 0.96÷2= 0.56÷28= 0.36÷0.4=
0.72÷3.6= 3.6÷24= 0.8×1.1=
7.2+12.8= 46.7-3.8=
12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=
10÷20= 24÷15= 8.65×10= 0.35×0.6=
3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=
10
10.8÷9= 9.6÷0.8= 0.108÷2=
4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=
0. 56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1=
0.25×0.4= 1.6÷0.8= 1÷2.5= 1.25×0.8=
3.2÷0.04= 0÷1.7= 0.22×102= 9÷0.25÷4= 0.25×3.97×4= (1.2+8.8)×0.4= 50+160÷40= (58+370)÷(64-45)= 120-144÷18+35 347+45×2-4160÷52 (58+37)÷(64-9×5) 95÷(64-45) 178-145÷5×6+42 420+580-64×21÷28 812-700÷(9+31×11) (136+64)×(65-345÷23) 85+14×(14+208÷26) 1.2×2.5+0.8×2.5 8.9×1.25-0.9×1.25 12.5×7.4×0.8 9.9×6.4-(2.5+0.24) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5) 2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7.85+3.4) 48×1.25+50×1.25×0.2×8 7.8×9.9+0.78 (1010+309+4+681+6)×12 3×9146×782×6×854 5.15×7/8+6.1-0.60625 (284+16)×(512-8208÷18) 120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55) ÷8.5 0.12× 4.8÷0.12×4.8
11
(3.2×1.5+2.5)÷1.6 3.2×(1.5+2.5)÷1.6
6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62]
12×6÷(12-7.2)-6 12×6÷7.2-6 方程:
88x+43=8579 x=97 36x+58=2974 x=81 13x+25=1247 x=94 89x-31=4063 x=46 27x+40=445 x=15 83x-90=1653 x=21 29x-35=545 x=20 97x+81=954 x=9 50x-99=3101 x=64
12
80x+17=1777 x=22 17x-37=609 x=38 88x+30=2758 x=31 80x+85=565 x=6 49x+43=827 x=16 99x-98=6139 x=63 95x+94=1044 x=10 62x+77=6153 x=98 38x-15=2037 x=54
44x+23=1387 x=31 83x-38=4444 x=54 60x+83=3203 x=52 21x+90=489 x=19 22x+23=2135 x=96 38x-69=2933 x=79 23x-40=696 x=32 48x-92=1684 x=37 39x+52=2470 x=62 56x-86=2770 x=51 37x+28=509 x=13 67x+39=5466 x=81 92x+67=1079 x=11 38x+45=2021 x=52 64x-67=2813 x=45 5x-96=94 x=38 84x-56=4732 x=57 26x-61=2513 x=99 9x+86=500 x=46 9x-48=744 x=88 43x-94=637 x=17
3.4-1.4= 7.82-7.2= 2.19+9.1= 10.1-0.89= 0.68+0.42=
96x+95=3935 x=40 21x-70=1988 x=98 72x+15=7071 x=98 83x-63=7656 x=93 47x+64=1944 x=40 38x+38=1178 x=30 68x+91=4103 x=59 53x+65=1443 x=26 5x-67=48 x=23 46x-74=4112 x=91 74x-34=6700 x=91
0.048+0.52= 5×400= 19.9+11.1= 187÷1000= 1+3.89=
13
8.1-5.1= 0.728-0.24= 0.8+0.18= 0.89-0.25= 1-0.98=
0.081×10= 75÷10= 0.96÷0.8= 0.8×7= 1.5×7= 1.32×8= 0.7×8= 10.3×2= 5×0.6= 0.9×0.3= 3.5×0.2= 2.01×0= 10×0.05= 0.13×7= 0.21×100= 0.7×4= 0.05×4= 4×0.3= 430-250= 0.17+0.06= 1.02-0.09= 7200÷800=
0.17+0.6= 0.83-0.6= 17×300= 0.98-0.09= 0.2+0.78= 600×700= 10.2+0.02= 0.15+0.7= 670+250= 10.2+0.2= 9.2-6= 8500÷500= 3.2-3.2= 3.7+2.3= 25×100= 3.2-0.32= 2+2.8= 380-290= 0.35+0.5= 0.35+0.63= 3500÷70=
14
3.1+3= 3.8+0.38= 7500÷250= 3.8+1= 0.95-0.05= 450+780= 3.1+0.3= 3+0.3= 630÷9= 4.5-0.4= 9.5-5= 330×9= 9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 4-0.6= 0.95+0.05=
2.5+3.2= 0.74+0.16= 23×100= 9.8-4.8= 480÷40= 0.53÷100= 5.1+2.3= 125×80=
0.078÷10= 0.52+0.4= 70×12= 0.25×100= 3.4-2.8= 0.6-0.37= 0.052×10= 10+0.08= 1-0.75= 0.5×1000= 82+0.3= 13.5+6.5= 3.05×100= 1.2-0.8=
21.6-12.6= 63÷100= 0.83-0.5= 0.76+0.14= 80÷1000= 2.7+0.4= 0.72-0.43= 30×100=
0.92-0.2= 3.5+4.8= 3.5+2.4= 5+0.07= 1-0.61= 0.47+0.23= 0.25+0.75= 3.7+0.33= 0.51+0.33= 1-0.6= 8-4.6= 5.8-3.6= 0.52+0.4= 6.45+5.5=
15
4.5-1.3= 3.4-2.8= 9.53-1.53= 8.8-6.7= 10+0.08= 9.5-7.3= 7.2+0.8= 7.82+0.3= 8.8-6.7= 9.5-7.3= 1-0.95= 3.4-2.8= 0.96-0.35= 0.35×0.6= 3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5= 2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2=
9.65÷0.1= 0.325×100= 2.5×8= 0. 56÷0.7= 0.75×100= 0.02×0.5= 3.6÷0.3=
24÷15= 8.65×10= 0.35×0.6=
6.3÷7= 3.08×0.01= 0.125×4= 3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1= 0.25
×
0.4= 1.6÷0.8= 1÷2.5= 1.25
×
0.8= 3.2÷0.04= 0÷1.7=
4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32=
5.6÷100= 0.75÷0.25= 0.125×8=
4.8÷0.3= 0.96÷2= 0.56÷28=
0.36÷0.4=
0.64÷0.8= 0.72÷3.6=
3.6÷24= 0.8×1.1=
7.2+12.8= 46.7-3.8= 12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=
16
×1000= ×0.1= ×0.5=
÷0.8= ÷9= ÷0.8= ÷2=
÷0.9= ÷0.1= ×100= ×8=
÷0.7= ×4= ×0.1= ÷0.13= ×0.1= ×0.1=
4.956.90.42.410.89.60.1084.959.650.3252.50.560.1253.283.97.20.01
1.6÷0.8= 1÷2.5= 1.25×0.8=
0÷1.7=
9÷0.25÷4= 0.25×3.97×4=
(1.2+8.8)×0.4=
50+160÷40 (58+370)÷(64-45) 32)120-144÷18+35 33)347+45×2-4160÷52 34 (58+37)÷(64-9×5) 35)95÷(64-45)
36)178-145÷5×6+42 420+580-64×21÷28
37)812-700÷(9+31×11) (136+64)×(65-345÷23) 38)85+14×(14+208÷26) 23) 1.2×2.5+0.8×2.5 24) 8.9×1.25-0.9×1.25 25) 12.5×7.4×0.8 26) 9.9×6.4-(2.5+0.24) 27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.4 6.72-3.28-1.72 0.45+6.37+4.55
5.4+6.9×3-(25-2.5)2×41846-620-380
17
4.8×46+4.8×54 0.8+0.8×2.5
1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7.85+3.4) 48×1.25+50×1.25×0.2×8 7.8×9.9+0.78
(1010+309+4+681+6)×12 3×9146×782×6×854 5.15×7/8+6.1-0.60625
39. (284+16)×(512-8208÷18) 40.120-36×4÷18+35 41. (58+37)÷(64-9×5) 42.(6.8-6.8×0.55) ÷8.5 43.0.12× 4.8÷0.12×4.8
44. (3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷45.6-1.6÷4= 5.38+7.85-5.37= 46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
18
1.6
48.10.15-10.75×0.4-5.7
49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 51.[(7.1-5.6)×0.9-1.15] ÷2.5 52.5.4÷[2.6×(3.7-2.9)+0.62]
53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6 方程:
88x+43=8579 x=97 36x+58=2974 x=81 13x+25=1247 x=94 89x-31=4063 x=46 27x+40=445 x=15 83x-90=1653 x=21 29x-35=545 x=20 97x+81=954 x=9 50x-99=3101 x=64 80x+17=1777 x=22 17x-37=609 x=38 88x+30=2758 x=31 80x+85=565 x=6
19
49x+43=827 x=16 99x-98=6139 x=63 95x+94=1044 x=10 62x+77=6153 x=98 38x-15=2037 x=54 44x+23=1387 x=31 83x-38=4444 x=54 60x+83=3203 x=52 21x+90=489 x=19 22x+23=2135 x=96 37x+28=509 x=13 67x+39=5466 x=81 92x+67=1079 x=11
38x+45=2021 x=52 64x-67=2813 x=45 5x-96=94 x=38 84x-56=4732 x=57 26x-61=2513 x=99 56x-86=2770 x=51 96x+95=3935 x=40 21x-70=1988 x=98 72x+15=7071 x=98 83x-63=7656 x=93 9x+86=500 x=46 9x-48=744 x=88 43x-94=637 x=17 38x-69=2933 x=79 23x-40=696 x=32 48x-92=1684 x=37 39x+52=2470 x=62
3.4-1.4= 7.82-7.2= 2.19+9.1= 10.1-0.89= 0.68+0.42= 8.1-5.1= 0.728-0.24= 0.8+0.18=
47x+64=1944 x=40 38x+38=1178 x=30 68x+91=4103 x=59 53x+65=1443 x=26 5x-67=48 x=23 46x-74=4112 x=91 74x-34=6700 x=91
0.081×10= 75÷10= 0.96÷0.8= ×400= 0.8×7= 1.5×7= ÷1000= 1.32×8= 0.7×8= 10.3×2=
20
0.89-0.25= 1-0.98= 0.048+0.52= 519.9+11.1= 1871+3.89=
5×0.6= 0.9×0.3= 3.5×0.2= 2.01×0= 10×0.05= 0.13×7= 0.21×100= 0.7×4= 0.05×4= 4×0.3= 430-250= 0.17+0.06= 1.02-0.09= 7200÷800= 0.17+0.6= 0.83-0.6= 17×300= 0.98-0.09= 0.2+0.78= 600×700= 10.2+0.02= 0.15+0.7=
670+250= 10.2+0.2= 9.2-6= 8500÷500= 3.2-3.2= 3.7+2.3= 25×100= 3.2-0.32= 2+2.8= 380-290= 0.35+0.5= 0.35+0.63= 3500÷70= 3.1+3= 3.8+0.38= 7500÷250= 3.8+1= 0.95-0.05= 450+780= 3.1+0.3= 3+0.3= 630÷9=
21
4.5-0.4= 9.5-5= 330×9= 9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 4-0.6= 0.95+0.05= 2.5+3.2= 0.74+0.16= 23×100= 9.8-4.8= 480÷40= 0.53÷100= 5.1+2.3= 125×80= 0.078÷10= 0.52+0.4=
70×12= 0.25×100= 3.4-2.8= 0.6-0.37= 0.052×10= 10+0.08= 1-0.75= 0.5×1000= 82+0.3= 13.5+6.5= 3.05×100= 1.2-0.8= 21.6-12.6= 63÷100= 0.83-0.5= 0.76+0.14= 80÷1000= 2.7+0.4= 0.72-0.43= 30×100= 0.92-0.2= 3.5+4.8=
3.5+2.4= 5+0.07= 1-0.61= 0.47+0.23= 0.25+0.75= 3.7+0.33= 0.51+0.33= 1-0.6= 8-4.6= 5.8-3.6= 0.52+0.4= 6.45+5.5= 4.5-1.3= 3.4-2.8= 9.53-1.53= 8.8-6.7= 10+0.08= 9.5-7.3= 7.2+0.8= 7.82+0.3= 8.8-6.7= 9.5-7.3=
22
1-0.95= 3.4-2.8= 0.96-0.35= 0.35×0.6= 3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5= 2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2= 4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8= 0. 56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1=
0.25×0.4= 1.6÷0.8= 1÷2.5=
0.56÷28= 0.36÷0.4=
1÷2.5= 7.8×10=
0.64÷0.8= 0.6×100=
3.71×10= 1.25×0.8= 0.72÷3.6= 3.2÷0.04= 0÷1.7=
4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32=
1.4×0.5= 0.75×100= 0.02×0.5= 3.6÷0.3=
6.3÷7= 5.6÷100= 0.75÷0.25= 0.125×8=
4.8÷0.3= 0.96÷2=
3.6÷24= 0.8×1.1=
7.2+12.8= 46.7-3.8= 12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=
10÷20= 24÷15= 8.65×10= 0.35×0.6=
3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=
2.4÷0.8= 10.8÷9=
23
4.5×1000= 0.92×100=
6÷12= 0.87-0.49= 9.6÷0.8= 0.108÷2= 4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=
0.56÷0.7= 0.125×4=
3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1= 0.25×0.4= 1.6÷0.8=
1.25×0.8= 9÷0.25÷4= 0.22×102=
3.2÷0.04=
0÷1.7=
0.25×3.97×4=
(1.2+8.8)×0.4= 50+160÷40
23) 1.2×2.5+0.8×2.5 32.120-144÷18+35 33.347+45×2-4160÷52
36.178-145÷5×6+42 37.812-700÷(9+31×11)420+580-64×21÷28 (136+64)×(65-345÷23) 24) 8.9×1.25-0.9×1.25
34(58+37)÷(64-9×5) 38.85+14×(14+208÷26) 35.95÷(64-45)
(58+370)÷(64-45)
5.2×10= 0.28×1000= 6.12×10= 0.479×100= 17.6×1000= 5÷100= 21.3÷10= 1.4×0.5=
24
14.17÷100= 9.2÷10= 7.13÷10= 1÷100= 0.43÷10= 278.6÷1000= 53.4÷100= 0.08×6=
38.2÷100= 2.33÷10= 4.56÷100= 9.02÷10= 70.77÷100= 356.8÷1000= 3.2×3= 1.5×0.3= 0.71×2= 0.25×4=
1.25×8= 4.3×2= 1.2×0.4= 0.6×0.9= 7.2÷3= 8.4÷4= 0.65÷5=
9.9÷11= 2.8÷2= 0.96÷3=
0.93÷3= 17×40= 3.4×0.3= 5×0.6= 4.5×2= 0.03×0.5= 1.6×0.3= 0.23×3= 5.1×2= 9×0.3= 7.1×3= 1.5×6= 0.9×0.4×10=
0.68×8×1.25= 7.1×0.25×4= 16.4×2.9+16.4×7.1= 3.2×
2.8+3.2×7.2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)=
2.7÷9= 3.8÷2= 5.4÷0.8=
4.6÷2= 1.8÷0.3= 4.2÷7= 9.6÷0.6=
6.4÷3.2= 11÷0.11= 10÷2.5= 14÷0.2=
0.31÷3= 10.5÷5= 14.7÷0.7= 20÷0.5=
9.6÷1.2= 3.44÷2= 65÷0.3=
25
100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8=
4×0.25= 0.36+1.54= 1.01×99=
420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
26
1
2
3
4
17×40= 100-63= 3.2+1.68= 2.8×0.4= 14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35= 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 =
2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 6÷12= 0.87-0.49=
17×40= 100-63= 3.2+1.68= 2.8×0.4= 14-7.4=
1.92÷0.04= 0.32×500= 0.65+4.35= 10-5.4= 4÷20= 3.5×200= 1.5-0.06=
5
1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 =
0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)=
7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35= 10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5=
5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5= 6÷12= 0.87-0.49= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 =
2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
6
17×40= 100-63= 3.2+1.68= 2.8×0.4=
6÷12= 0.87-0.49= 17×40= 100-63=
3.2+1.68= 2.8×0.4= 14-7.4= 1.92÷0.04= 0.32×500=
0.65+4.35=10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8=
4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 =
2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
6÷12= 0.87-0.49= 17×40= 100-63= 3.2+1.68= 2.8×0.4= 14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15=
0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5=
7
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5= 6÷12= 0.87-0.49= 17×40= 100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35= 10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8= 4×0.25= 0.36+1.54= 1.01×99= 420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2=
1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)=
7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 39×4= 51×9= 77×7= 874×3= 304×5= 106×10= 178×3= 78×9= 1.573×6= 3.52×100= 3.54×8= 43.87×4= 163×3= 724×7= 43.7×8= 46.9×8=
78×9= 250×0.4=
8
24×5= 37×8= 104×5= 847×4= 8×42= 5.78×92= 78×2= 245×0= 306×103×0= 132×6= 350×1000= 317×4= 1.52×6= 125×0.8= 302×783×0= 264×8= 5.76×9= 3875×0= 1.854×0×100= 937×4= 285×4= 134×3=
125×8= 25×4= 300×52= 5×42= 1.35×9= 15×8= 125×4= 8.456×1000= 21×8= 32×0.1= 572×8= 372×0= 153×46= 173×10= 15×80= 3 652007×0=
384÷4= 888÷74= 592÷37= 384÷32= 1846÷10=
468÷39= 1460÷20= 50÷2= 78÷4= 24.5÷14= 49.5÷3= 153÷0= 462÷5= 374÷10= 73÷9= 10÷3= 27×3= 90÷15= 48÷4= 640÷16= 39÷3= 24×20= 32×3= 48÷16= 12×8= 27×3= 56÷14=
9
24÷8= 14×2= 83-45= 560÷80= 96÷24= 40÷20= 40×30= 37+26= 76-39= 605+59= 30×23= 12×8= 27+32= 48+27= 4500×20= 73+15 = 120×600 = 200×360= 6800×400= 280+270= 4×2500= 6000÷40=
5×1280= 4.3+2.7= 0.75+0.25= 4-0.26=
0.35+2.7= 4.6-1.9= 0.83-0.3= 3+0.05=
7.2-3.8= 0.07+0.6= 1.39-0.39= 10-5.4=
4.7+2.3= 0.64÷0.8= 2.4÷0.8= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32=
1.4×0.5= 0.75×100= 0.02×0.5= 3.6÷0.3=
6.3÷7= 5.6÷100= 0.75÷0.25= 0.125×8=
4.8÷0.3= 0.96÷2= 0.56÷28= 0.36÷0.4=
0.72÷3.6= 3.6÷24= 0.8×1.1=
7.2+12.8= 46.7-3.8=
12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=
10÷20= 24÷15= 8.65×10= 0.35×0.6=
3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=
10
10.8÷9= 9.6÷0.8= 0.108÷2=
4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=
0. 56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1=
0.25×0.4= 1.6÷0.8= 1÷2.5= 1.25×0.8=
3.2÷0.04= 0÷1.7= 0.22×102= 9÷0.25÷4= 0.25×3.97×4= (1.2+8.8)×0.4= 50+160÷40= (58+370)÷(64-45)= 120-144÷18+35 347+45×2-4160÷52 (58+37)÷(64-9×5) 95÷(64-45) 178-145÷5×6+42 420+580-64×21÷28 812-700÷(9+31×11) (136+64)×(65-345÷23) 85+14×(14+208÷26) 1.2×2.5+0.8×2.5 8.9×1.25-0.9×1.25 12.5×7.4×0.8 9.9×6.4-(2.5+0.24) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5) 2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7.85+3.4) 48×1.25+50×1.25×0.2×8 7.8×9.9+0.78 (1010+309+4+681+6)×12 3×9146×782×6×854 5.15×7/8+6.1-0.60625 (284+16)×(512-8208÷18) 120-36×4÷18+35 (58+37)÷(64-9×5) (6.8-6.8×0.55) ÷8.5 0.12× 4.8÷0.12×4.8
11
(3.2×1.5+2.5)÷1.6 3.2×(1.5+2.5)÷1.6
6-1.6÷4= 5.38+7.85-5.37= 7.2÷0.8-1.2×5= 6-1.19×3-0.43= 6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9 10.15-10.75×0.4-5.7 5.8×(3.87-0.13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5 [(7.1-5.6)×0.9-1.15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62]
12×6÷(12-7.2)-6 12×6÷7.2-6 方程:
88x+43=8579 x=97 36x+58=2974 x=81 13x+25=1247 x=94 89x-31=4063 x=46 27x+40=445 x=15 83x-90=1653 x=21 29x-35=545 x=20 97x+81=954 x=9 50x-99=3101 x=64
12
80x+17=1777 x=22 17x-37=609 x=38 88x+30=2758 x=31 80x+85=565 x=6 49x+43=827 x=16 99x-98=6139 x=63 95x+94=1044 x=10 62x+77=6153 x=98 38x-15=2037 x=54
44x+23=1387 x=31 83x-38=4444 x=54 60x+83=3203 x=52 21x+90=489 x=19 22x+23=2135 x=96 38x-69=2933 x=79 23x-40=696 x=32 48x-92=1684 x=37 39x+52=2470 x=62 56x-86=2770 x=51 37x+28=509 x=13 67x+39=5466 x=81 92x+67=1079 x=11 38x+45=2021 x=52 64x-67=2813 x=45 5x-96=94 x=38 84x-56=4732 x=57 26x-61=2513 x=99 9x+86=500 x=46 9x-48=744 x=88 43x-94=637 x=17
3.4-1.4= 7.82-7.2= 2.19+9.1= 10.1-0.89= 0.68+0.42=
96x+95=3935 x=40 21x-70=1988 x=98 72x+15=7071 x=98 83x-63=7656 x=93 47x+64=1944 x=40 38x+38=1178 x=30 68x+91=4103 x=59 53x+65=1443 x=26 5x-67=48 x=23 46x-74=4112 x=91 74x-34=6700 x=91
0.048+0.52= 5×400= 19.9+11.1= 187÷1000= 1+3.89=
13
8.1-5.1= 0.728-0.24= 0.8+0.18= 0.89-0.25= 1-0.98=
0.081×10= 75÷10= 0.96÷0.8= 0.8×7= 1.5×7= 1.32×8= 0.7×8= 10.3×2= 5×0.6= 0.9×0.3= 3.5×0.2= 2.01×0= 10×0.05= 0.13×7= 0.21×100= 0.7×4= 0.05×4= 4×0.3= 430-250= 0.17+0.06= 1.02-0.09= 7200÷800=
0.17+0.6= 0.83-0.6= 17×300= 0.98-0.09= 0.2+0.78= 600×700= 10.2+0.02= 0.15+0.7= 670+250= 10.2+0.2= 9.2-6= 8500÷500= 3.2-3.2= 3.7+2.3= 25×100= 3.2-0.32= 2+2.8= 380-290= 0.35+0.5= 0.35+0.63= 3500÷70=
14
3.1+3= 3.8+0.38= 7500÷250= 3.8+1= 0.95-0.05= 450+780= 3.1+0.3= 3+0.3= 630÷9= 4.5-0.4= 9.5-5= 330×9= 9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 4-0.6= 0.95+0.05=
2.5+3.2= 0.74+0.16= 23×100= 9.8-4.8= 480÷40= 0.53÷100= 5.1+2.3= 125×80=
0.078÷10= 0.52+0.4= 70×12= 0.25×100= 3.4-2.8= 0.6-0.37= 0.052×10= 10+0.08= 1-0.75= 0.5×1000= 82+0.3= 13.5+6.5= 3.05×100= 1.2-0.8=
21.6-12.6= 63÷100= 0.83-0.5= 0.76+0.14= 80÷1000= 2.7+0.4= 0.72-0.43= 30×100=
0.92-0.2= 3.5+4.8= 3.5+2.4= 5+0.07= 1-0.61= 0.47+0.23= 0.25+0.75= 3.7+0.33= 0.51+0.33= 1-0.6= 8-4.6= 5.8-3.6= 0.52+0.4= 6.45+5.5=
15
4.5-1.3= 3.4-2.8= 9.53-1.53= 8.8-6.7= 10+0.08= 9.5-7.3= 7.2+0.8= 7.82+0.3= 8.8-6.7= 9.5-7.3= 1-0.95= 3.4-2.8= 0.96-0.35= 0.35×0.6= 3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5= 2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2=
9.65÷0.1= 0.325×100= 2.5×8= 0. 56÷0.7= 0.75×100= 0.02×0.5= 3.6÷0.3=
24÷15= 8.65×10= 0.35×0.6=
6.3÷7= 3.08×0.01= 0.125×4= 3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1= 0.25
×
0.4= 1.6÷0.8= 1÷2.5= 1.25
×
0.8= 3.2÷0.04= 0÷1.7=
4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32=
5.6÷100= 0.75÷0.25= 0.125×8=
4.8÷0.3= 0.96÷2= 0.56÷28=
0.36÷0.4=
0.64÷0.8= 0.72÷3.6=
3.6÷24= 0.8×1.1=
7.2+12.8= 46.7-3.8= 12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=
16
×1000= ×0.1= ×0.5=
÷0.8= ÷9= ÷0.8= ÷2=
÷0.9= ÷0.1= ×100= ×8=
÷0.7= ×4= ×0.1= ÷0.13= ×0.1= ×0.1=
4.956.90.42.410.89.60.1084.959.650.3252.50.560.1253.283.97.20.01
1.6÷0.8= 1÷2.5= 1.25×0.8=
0÷1.7=
9÷0.25÷4= 0.25×3.97×4=
(1.2+8.8)×0.4=
50+160÷40 (58+370)÷(64-45) 32)120-144÷18+35 33)347+45×2-4160÷52 34 (58+37)÷(64-9×5) 35)95÷(64-45)
36)178-145÷5×6+42 420+580-64×21÷28
37)812-700÷(9+31×11) (136+64)×(65-345÷23) 38)85+14×(14+208÷26) 23) 1.2×2.5+0.8×2.5 24) 8.9×1.25-0.9×1.25 25) 12.5×7.4×0.8 26) 9.9×6.4-(2.5+0.24) 27) 6.5×9.5+6.5×0.5 0.35×1.6+0.35×3.4 6.72-3.28-1.72 0.45+6.37+4.55
5.4+6.9×3-(25-2.5)2×41846-620-380
17
4.8×46+4.8×54 0.8+0.8×2.5
1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×20 23.65-(3.07+3.65) (4+0.4×0.25)8×7×1.25 1.65×99+1.65 27.85-(7.85+3.4) 48×1.25+50×1.25×0.2×8 7.8×9.9+0.78
(1010+309+4+681+6)×12 3×9146×782×6×854 5.15×7/8+6.1-0.60625
39. (284+16)×(512-8208÷18) 40.120-36×4÷18+35 41. (58+37)÷(64-9×5) 42.(6.8-6.8×0.55) ÷8.5 43.0.12× 4.8÷0.12×4.8
44. (3.2×1.5+2.5)÷1.6 (2)3.2×(1.5+2.5)÷45.6-1.6÷4= 5.38+7.85-5.37= 46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×(4.8-1.2×4)= 0.68×1.9+0.32×1.9
18
1.6
48.10.15-10.75×0.4-5.7
49.5.8×(3.87-0.13)+4.2×3.74 50.32.52-(6+9.728÷3.2)×2.5 51.[(7.1-5.6)×0.9-1.15] ÷2.5 52.5.4÷[2.6×(3.7-2.9)+0.62]
53.12×6÷(12-7.2)-6 (4)12×6÷7.2-6 方程:
88x+43=8579 x=97 36x+58=2974 x=81 13x+25=1247 x=94 89x-31=4063 x=46 27x+40=445 x=15 83x-90=1653 x=21 29x-35=545 x=20 97x+81=954 x=9 50x-99=3101 x=64 80x+17=1777 x=22 17x-37=609 x=38 88x+30=2758 x=31 80x+85=565 x=6
19
49x+43=827 x=16 99x-98=6139 x=63 95x+94=1044 x=10 62x+77=6153 x=98 38x-15=2037 x=54 44x+23=1387 x=31 83x-38=4444 x=54 60x+83=3203 x=52 21x+90=489 x=19 22x+23=2135 x=96 37x+28=509 x=13 67x+39=5466 x=81 92x+67=1079 x=11
38x+45=2021 x=52 64x-67=2813 x=45 5x-96=94 x=38 84x-56=4732 x=57 26x-61=2513 x=99 56x-86=2770 x=51 96x+95=3935 x=40 21x-70=1988 x=98 72x+15=7071 x=98 83x-63=7656 x=93 9x+86=500 x=46 9x-48=744 x=88 43x-94=637 x=17 38x-69=2933 x=79 23x-40=696 x=32 48x-92=1684 x=37 39x+52=2470 x=62
3.4-1.4= 7.82-7.2= 2.19+9.1= 10.1-0.89= 0.68+0.42= 8.1-5.1= 0.728-0.24= 0.8+0.18=
47x+64=1944 x=40 38x+38=1178 x=30 68x+91=4103 x=59 53x+65=1443 x=26 5x-67=48 x=23 46x-74=4112 x=91 74x-34=6700 x=91
0.081×10= 75÷10= 0.96÷0.8= ×400= 0.8×7= 1.5×7= ÷1000= 1.32×8= 0.7×8= 10.3×2=
20
0.89-0.25= 1-0.98= 0.048+0.52= 519.9+11.1= 1871+3.89=
5×0.6= 0.9×0.3= 3.5×0.2= 2.01×0= 10×0.05= 0.13×7= 0.21×100= 0.7×4= 0.05×4= 4×0.3= 430-250= 0.17+0.06= 1.02-0.09= 7200÷800= 0.17+0.6= 0.83-0.6= 17×300= 0.98-0.09= 0.2+0.78= 600×700= 10.2+0.02= 0.15+0.7=
670+250= 10.2+0.2= 9.2-6= 8500÷500= 3.2-3.2= 3.7+2.3= 25×100= 3.2-0.32= 2+2.8= 380-290= 0.35+0.5= 0.35+0.63= 3500÷70= 3.1+3= 3.8+0.38= 7500÷250= 3.8+1= 0.95-0.05= 450+780= 3.1+0.3= 3+0.3= 630÷9=
21
4.5-0.4= 9.5-5= 330×9= 9.53-1.53= 9.5-0.5= 3.5+2.4= 1-0.95= 0.3+0.27= 0.47+0.13= 4.5+4= 4-0.6= 0.95+0.05= 2.5+3.2= 0.74+0.16= 23×100= 9.8-4.8= 480÷40= 0.53÷100= 5.1+2.3= 125×80= 0.078÷10= 0.52+0.4=
70×12= 0.25×100= 3.4-2.8= 0.6-0.37= 0.052×10= 10+0.08= 1-0.75= 0.5×1000= 82+0.3= 13.5+6.5= 3.05×100= 1.2-0.8= 21.6-12.6= 63÷100= 0.83-0.5= 0.76+0.14= 80÷1000= 2.7+0.4= 0.72-0.43= 30×100= 0.92-0.2= 3.5+4.8=
3.5+2.4= 5+0.07= 1-0.61= 0.47+0.23= 0.25+0.75= 3.7+0.33= 0.51+0.33= 1-0.6= 8-4.6= 5.8-3.6= 0.52+0.4= 6.45+5.5= 4.5-1.3= 3.4-2.8= 9.53-1.53= 8.8-6.7= 10+0.08= 9.5-7.3= 7.2+0.8= 7.82+0.3= 8.8-6.7= 9.5-7.3=
22
1-0.95= 3.4-2.8= 0.96-0.35= 0.35×0.6= 3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5= 2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2= 4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8= 0. 56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1=
0.25×0.4= 1.6÷0.8= 1÷2.5=
0.56÷28= 0.36÷0.4=
1÷2.5= 7.8×10=
0.64÷0.8= 0.6×100=
3.71×10= 1.25×0.8= 0.72÷3.6= 3.2÷0.04= 0÷1.7=
4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32=
1.4×0.5= 0.75×100= 0.02×0.5= 3.6÷0.3=
6.3÷7= 5.6÷100= 0.75÷0.25= 0.125×8=
4.8÷0.3= 0.96÷2=
3.6÷24= 0.8×1.1=
7.2+12.8= 46.7-3.8= 12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=
10÷20= 24÷15= 8.65×10= 0.35×0.6=
3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=
2.4÷0.8= 10.8÷9=
23
4.5×1000= 0.92×100=
6÷12= 0.87-0.49= 9.6÷0.8= 0.108÷2= 4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=
0.56÷0.7= 0.125×4=
3.28×0.1= 3.9÷0.13= 7.2×0.1= 0.01×0.1= 0.25×0.4= 1.6÷0.8=
1.25×0.8= 9÷0.25÷4= 0.22×102=
3.2÷0.04=
0÷1.7=
0.25×3.97×4=
(1.2+8.8)×0.4= 50+160÷40
23) 1.2×2.5+0.8×2.5 32.120-144÷18+35 33.347+45×2-4160÷52
36.178-145÷5×6+42 37.812-700÷(9+31×11)420+580-64×21÷28 (136+64)×(65-345÷23) 24) 8.9×1.25-0.9×1.25
34(58+37)÷(64-9×5) 38.85+14×(14+208÷26) 35.95÷(64-45)
(58+370)÷(64-45)
5.2×10= 0.28×1000= 6.12×10= 0.479×100= 17.6×1000= 5÷100= 21.3÷10= 1.4×0.5=
24
14.17÷100= 9.2÷10= 7.13÷10= 1÷100= 0.43÷10= 278.6÷1000= 53.4÷100= 0.08×6=
38.2÷100= 2.33÷10= 4.56÷100= 9.02÷10= 70.77÷100= 356.8÷1000= 3.2×3= 1.5×0.3= 0.71×2= 0.25×4=
1.25×8= 4.3×2= 1.2×0.4= 0.6×0.9= 7.2÷3= 8.4÷4= 0.65÷5=
9.9÷11= 2.8÷2= 0.96÷3=
0.93÷3= 17×40= 3.4×0.3= 5×0.6= 4.5×2= 0.03×0.5= 1.6×0.3= 0.23×3= 5.1×2= 9×0.3= 7.1×3= 1.5×6= 0.9×0.4×10=
0.68×8×1.25= 7.1×0.25×4= 16.4×2.9+16.4×7.1= 3.2×
2.8+3.2×7.2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)=
2.7÷9= 3.8÷2= 5.4÷0.8=
4.6÷2= 1.8÷0.3= 4.2÷7= 9.6÷0.6=
6.4÷3.2= 11÷0.11= 10÷2.5= 14÷0.2=
0.31÷3= 10.5÷5= 14.7÷0.7= 20÷0.5=
9.6÷1.2= 3.44÷2= 65÷0.3=
25
100-63= 3.2+1.68= 2.8×0.4=
14-7.4= 1.92÷0.04= 0.32×500= 0.65+4.35=
10-5.4= 4÷20= 3.5×200= 1.5-0.06= 0.75÷15= 0.4×0.8=
4×0.25= 0.36+1.54= 1.01×99=
420÷35= 25×12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= 1.6×0.4= 4.9×0.7= 1÷5=
26