题目内容
| 1-0.09= | 0.45×101= | 2÷0.02= | 0.25×0.7×0.4= |
 × = | 5- = |  ÷ = | 2.72+3-2.72+3= |
| 解：1-0.09=0.91， | 0.45×101=45.45， | 2÷0.02=100， | 0.25×0.7×0.4=0.07， |
×= ， | 5-=4 ， | ÷= ， | 2.72+3-2.72+3=6． |
分析：0.45×101先把101分解成100+1，再运用乘法分配律简算；0.25×0.7×0.4运用乘法交换律简算；2.72+3-2.72+3运用加法结合律简算；其它题目根据运算法则直接求解．
点评：本题考查了基本的计算，要注意分析式中数据，运用合适的简便方法计算．
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