| 365×14= | 9-2.64= | 56÷0.56= | ×12= | 5.6-6.6-19= |
| 630×9%= | ÷ = | 5+(- )= | × ÷ = | × + × = |
| 解:365×14=5110, | 9-2.64=6.36, | 56÷0.56=100, | ×12= , | 5.6-6.6-19=-20, |
| 630×9%=56.7, | ÷ = , | 5+ =5 , | × ÷ = , | × + × = . |
分析:根据整数、小数和分数加减乘除的计算方法进行计算即可;
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根据乘法分配律进行简算.点评:口算时,注意运算符号和数据,然后再进一步计算即可,能简算的要简算.
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