| 26+29= | 22×4= | 44+17= | 90÷3= |
| 80-45= | 1300-500= | 120×3= | 64-18= |
| 88÷2= | 500×6= | 1400-700= | 300×7= |
+ = | - = | + = | - = |
| 解:26+29=55, | 22×4=88, | 44+17=61, | 90÷3=30, |
| 80-45=35, | 1300-500=800, | 120×3=360, | 64-18=46, |
| 88÷2=44, | 500×6=3000, | 1400-700=700, | 300×7=2100, |
+ = , | - = , | + = , | - = . |
分析:根据整数和分数加减乘除的计算方法进行计算即可.
点评:口算时,注意运算符号和数据,然后再进一步计算即可.
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