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用简便方法计算18×2.75+1.25×0.425+12.5%

题目详情
用简便方法计算
1
8
×2.75+1.25×0.425+12.5%
▼优质解答
答案和解析
1
8
×2.75+1.25×0.425+12.5%
=0.125×2.75+0.125×4.25+0.125
=0.125×(2.75+4.25+1)
=0.125×8
=1.