试题:
用简便方法计算。
+3.75++62.5%
×35%+×0.35
0.125×32×0.8
24×(+

答案:

我来补答
解:(1)+3.75++62.5%
=++3.75+0.625
=1+3.75+0.625
=5.375,
(2)×35%+×0.35
=×0.35+×0.35
=(+)×0.35
=0.35;
(3)0.125×32×0.8
=0.125×0.8×32
=0.1×32
=3.2;
(4)24×(+
=24×+24×-24×
=6+4-3
=7
 
 
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这些题目你会做吗?