×16= | 12÷ = | 0.3× = | ÷ = | 1÷ = | 0× + = |
× = | ÷ = | 0.75÷ = | 1- = | 1÷0.01= | 10-0.01= |
解: ×16=12, | 12÷ =20, | 0.3× = , | ÷ = , | 1÷ = , | 0× + = , |
× = , | ÷ =1, | 0.75÷ = , | 1- = , | 1÷0.01=100. | 10-0.01=9.99. |
分析:分数乘法题,计算时要先约分,再计算;
分数除法题,计算时要把除以一个数改为乘这个数的倒数,再按照分数乘法的方法计算;
0×
+
,按照先算乘法,再算加法的顺序计算;1-
,把1看做
计算;10-0.01,把小数点对齐,再相减得解.点评:此题考查学生基本的计算,如分数乘、除法的计算,分数减法的计算,小数减法的计算等,在做题时应注意审题,采用最简便的方法灵活计算.
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