×1.6= | 0.8÷0.01= | 0.6÷ = | 0.25×4= | 0.1×0.1+0.1÷0.1= |
| 8.4÷0.7= | ×33= | - = | 3.37+6.63= | 4-1÷3-8× = |
| 29.4÷0.7= | ×33= | - = | 3.37+6.63= | 4-1÷3-8× = |
×1.6=1.2, | 0.8÷0.01=80, | 0.6÷ =1, | 0.25×4=1, | 0.1×0.1+0.1÷0.1=1.01, |
| 8.4÷0.7=12, | ×33=15, | - = , | 3.37+6.63=10, | 4-1÷3-8× =1, |
| 29.4÷0.7=42, | ×33=15, | - = , | 3.37+6.63=10, | 4-1÷3-8× =1. |
分析:根据小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.
×1.6=
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×33=
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