题目内容
| 24×5= | 65-56= | 400÷8= | 4×50= |
| 810÷9= | 600×7= | 270+72= | 100-1= |
| 12+8×3= | 56÷7÷2= | 100-12+28= | 135+83+17= |
| 2×8×5= | 30-0÷6= | 20×30÷20= | 4×0×7= |
分析：本题根据整数乘法与除法、加法与减法的运算法则计算即可．
135+83+17可根据加法结合律计算，20×30÷20可根据乘法交换律计算．
135+83+17可根据加法结合律计算，20×30÷20可根据乘法交换律计算．
解答：解：
| 24×5=120 | 65-56=9 | 400÷8=50 | 4×50=200 |
| 810÷9=90 | 600×7=4200 | 270+72=342 | 100-1=99 |
| 12+8×3=36 | 56÷7÷2=4 | 100-12+28=116 | 135+83+17=235 |
| 2×8×5=80 | 30-0÷6=30 | 20×30÷20=30 | 4×0×7=0 |
点评：完成本题要注意分析式中数据的特点，然后快速准确得出答案．
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