直接写出得数 × = | 1- = | ÷ = | (7+ )×8= |
| 0.1÷10%= | ×6= | a- a= | 12×( - + )= |
解: × = , | 1- = , | ÷ =1 , | (7+ )×8=63, |
| 0.1÷10%=1, | ×6=4.5, | a- a= a, | 12×( - + )=11. |
,
,1
,63,1,4.5,
a,11.分析:(1)(3)(5)(6)依据分数乘除法计算方法解答,
(2)依据整数减分数计算方法解答,
(4)(8)运用乘法分配律解答,
(7)依据含字母式子化简方法解答.
点评:本题考查知识点:(1)分数四则运算计算方法,(2)乘法分配律运用,(3)化简含字母式子.
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