8.8×0.25+2.5的简便运算
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8.8×0.25+2.5
=2.2×4×0.25+2.5
=2.2×1+2.5
=2.2+2.5
=4.7
咨询记录 · 回答于2022-05-02
8.8×0.25+2.5的简便运算
8.8×0.25+2.5=2.2×4×0.25+2.5=2.2×1+2.5=2.2+2.5=4.7
[比心]
8.8=2.2×44×0.25=1
亲,拆开来计算更简便