题目列表(包括答案和解析)
| 32+9= | 60×3= | 50÷2= | 22×4= |
| 66÷6= | 71-7= | 400÷2= | 90÷3= |
| 69÷3= | 62÷2= | 28+17= | 30×8= |
| 800÷4= | 13×2= | 20×4= | 64-36= |
| 31×2= | 36÷3= | 84÷4= | 140÷7= |
| 15×4= | 9×80= | 15×40= | 49×10= |
| 150×2= | 56×10= | 42×30= | 30×20= |
| 31×30= | 4×60= | 5×60= | 20×10= |
| 8×70= | 7×40= | 27×30= | 10×10= |
| 6×30= | 150×4= | 16×40= | 50×30= |
| 70×3= | 70-3= | 60×40= | 35×20= |
| 64÷4= | 36+50= | 40×50= | 18+6= |
| 200×30= | 42×4= | 63-7= | 230×20= |
| 130×3= | 60×50= | 150÷3= | 260×2= |
| 75-26= | 21×40= | 35×20= | 15×80= |
| 300×6= | 15×8= | 23×30= | 51÷3= |
| 24×3= | 34×2= | 15×5= | 490÷7= |
| 21×3= | 15×6= | 120÷6= | 25×4= |
| 14×5= | 30×60= | 17×3= | 25×40= |
| 125×8= | 13×5= | 14×4= | 75×4= |
| 308×7= | 105×30= | 1200÷4= | 5×17= |
| 48÷3= | 90×6= | 1400×5= | 12×8= |
| 92÷2= | 150×4= | 3200×2= | 24×20= |
| 28×3= | 6×13= | 650÷5= | 900÷6= |
| 10×47= | 12×20= | 18×2= | 84÷3= |
| 1900×5= | 720÷4= | 50×70= | 26×30= |
| 18×4= | 36×20= | 4×250= | 160×2= |
| 480÷2= | 50×60= | 48÷4= | 18×3= |
| 6×800= | 110×8= | 130×5= | 400÷8= |
| 420÷3= | 90-15= | 3×24= | 48+16= |
| 11×40= | 53+26= | 99÷9= | 86÷2= |
| 700×2= | 6×11= | 83-37= | 90-34= |
| 2×23= | 2×120= | 29+49= | 500+300= |
| 400×4= | 4×700= | 800+300= | 60+17= |
| 4000+300= | 72÷8= | 15×4= | 4700-700= |
| 88÷8= | 7300+400= | 12×3= | 72÷7= |
| 63÷7= | 200×8= | 110×4= | 3×310= |
| 950×0= | 110×1= | 402×2= | 25+18= |
| 25+43= | 3700+3000= | 500×6= | 6500-300= |
| 21×3= | 6700+200= | 7×600= | 600×3= |
| 500×4= | 350×4= | 61÷3= | 44÷2= |
| 903÷3= | 85-49= | 68+17= | 84-34= |
| 44+46= | 300+800= | 65-39= | 1100-500= |
| 50-36= | 71-44= | 900×4= | 220×4= |
| 500×3= | 120×3= | 25+37= | 50×60= |
| 7×9+4= | 6×9+8= | 7×8+4= | 9×4+6= |
| 6×6+7= | 60 60 +70=130 |
50× 4 4 =200 |
800 800 -300=500 |
| 35÷ 5 5 =7 |
350+ 650 650 =1000 |
400- 200 200 =200 |
50 50 ×8=400 |
| 1000- 300 300 =700 |
150 150 ÷5=30 |
300- 200 200 =100 |
500 500 +500=1000 |
| 2000- 2000 2000 =0 |
300 300 ÷6=50 |
500+ 200 200 =700 |
1000 1000 -700=300 |
| 900- 800 800 =100． |
| 3.5×0.4= | 2.5×0.4= | 2.3×0.2= | 2.1÷0.3= |
| 7.1×0.4= | 4.5÷0.15= | 1-0.07= | 0.42÷0.7= |
| 12.4÷4= | 2.5+1.5= | 5.9×0.2= | 0.48÷0.8= |
| 0.25×1.3×4= | 20÷0.01= | 9÷0.01= | 5.5÷1.1= |
| 4.79+15.81= | 0.3÷0.03= | 0.2×0.1= | 3.6+6.4= |
| 0.56÷0.28= | 1.2×0.3= | 6.7-5.6= | 7.25÷0.5= |
| 4.2÷0.21= | 4.3×0= | 0.15÷0.5= | 3.5×4= |
| 5.32-5.3= | 1.25×3.4×8= | 9.6÷3.2= | 3.6+2.4= |
| 4.3-2.7+5.7= | 7.2-5.6= | 1.8÷0.9= | 8.2×0.5= |
| 5.6÷0.4= | 8.5÷5= | 5.6×0.5= | 9.8÷0.2= |
| 3.56×0.2= | 3.4+1.5+4.6= | 3.4×0.04= | 6.12+3.48= |
| 6÷0.12= | 7.6÷4= | 3.4×0.5= | 5.2-3.2-1.8= |
| 6-3.8= | 7.5÷3= | 3.5+5.4= | 3×2.5= |
| 3.5+6.5= | 7-6.23= | 8÷0.4= | 0.25×2.5= |
| 7.5÷0.5= | 0.89-0.48= | 3.5×0.8= | 5.9-（3.2+0.9）= |
| 12×0.5= 6 6 17-5.7= 11.3 11.3 0.15×8= 1.2 1.2 0.48÷6= 0.08 0.08 0.4×0.2×0.5= 0.04 0.04 7×0.08= 0.56 0.56 5÷0.25= 20 20 |
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| 7-6.28= 0.72 0.72 0.3÷0.15÷2= 1 1 0.25+4.2+1.75= 6.2 6.2 19×0.8= 15.2 15.2 80÷1.6= 50 50 |
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| 14×7 | 2.8-0.4 | 1.2×0.5 | 0.12÷4 |
| 0.22×0.2 | 0.15÷0.3 | 43+15 | 2.2-1.5 |
| 0.46+0.6 | 2-1.7 | 4.1+0.04 | 3.5-3 |
| 20+160 | 210÷30 | 30×20 | 600÷20 |
| 21×40 | 110-60 | 44×25 | 201×14 |
 |  |  |  |
 | 5× ×20% | 50%+ | 5- ×8 |
 ×7 |  ×9． |
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