(1) = | (2)4.25×0.2+0.15= | (3)5.55÷0.5= | (4) = | (5) = |
(6) = | (7) = | (8)0.022= | (9) = | (10) = |
解:(1) = ; | (2)4.25×0.2+0.15=1 | (3)5.55÷0.5=11.1 | (4) =2 | (5) = ; |
(6) =8.02 | (7) =1 | (8)0.022=0.0004 | (9) =2![]() | (10) =5 |
分析:(1)先把两个分数通分再计算就行;
(2)先算乘法再算加法;
(3)根据小数除法法则计算即可;
(4)先把带分数化成假分数,再按照分数乘法法则计算机即可;
(5)根据分数除法法则计算即可;
(6)先算除法,再把百分数化成小数计算即可;
(7)先把分数化成小数,再计算就容易了;
(8)先提取公因数2
,原式写成2
×(
+
)的形式,然后计算即可;(9)用24分别于括号中得分数相乘即可.
点评:本题综合考查了学生的基本的计算能力.
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