题目内容
直接写出得数 = | += | = | = |
= | -= | = | = |
解:=1, | +=, | =1.1, | =, |
=0.6, | -=0.25, | =0.2, | =. |
分析:横向数:(1)(2)(3)(4)依据分数加法计算方法解答,
(5)(6)(7)(8)依据分数减法计算方法解答.
点评:本题主要考查学生依据分数加减法计算方法解决问题的能力.
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题目内容
直接写出得数 = | += | = | = |
= | -= | = | = |
解:=1, | +=, | =1.1, | =, |
=0.6, | -=0.25, | =0.2, | =. |