關於025258的百科

3.76×0.25+25.8的簡便運算
3.76×0.25+25.8的簡便運算:3.76×0.25+25.8=(4-0.24)×0.25+25.8=4×0.25-0.24×0.25+25.8=4×0.25-(0.06×4)×0.25+25.8=1-0.06×(4×0.25)+25.8=0.94+25.8=26.74。——運用了乘法交換律和乘法結合律簡便算法說明:1...
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