
8.25×1.14简便方法计算?
1个回答
展开全部
简算:
8.25×1.14
=8.25×(1+0.14)
=8.25×1+8.25×0.14
=8.25+8.25×2×0.07
=8.25+16.5×0.07
=8.25+16.5×(0.1-0.03)
=8.25+1.65-0.495
=9.9-0.495
=9.405
运用了乘法分配律
8.25×1.14
=8.25×(1+0.14)
=8.25×1+8.25×0.14
=8.25+8.25×2×0.07
=8.25+16.5×0.07
=8.25+16.5×(0.1-0.03)
=8.25+1.65-0.495
=9.9-0.495
=9.405
运用了乘法分配律
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