0.23×0.35×4简便运算怎么算?
55个回答
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0.23×0.35×4
=0.23×(0.35×4)
=0.23×1.4
=0.322
简便方法:乘法结合律
=0.23×(0.35×4)
=0.23×1.4
=0.322
简便方法:乘法结合律
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0.23×0.35×4
=(0.2+0.03)×0.7×(0.5×4)
=(0.2×0.7+0.03×0.7)×2
=(0.14+0.021)×2
=0.161×2
=0.322
=(0.2+0.03)×0.7×(0.5×4)
=(0.2×0.7+0.03×0.7)×2
=(0.14+0.021)×2
=0.161×2
=0.322
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0.23×0.35×4
=0.23×(0.25+0.1)×4
=0.23×(1+0.4)
=0 .23×+0.23×0.4
=0.23+0.092
=0.322
=0.23×(0.25+0.1)×4
=0.23×(1+0.4)
=0 .23×+0.23×0.4
=0.23+0.092
=0.322
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=0.23×(0.35×4)
=0.23×1.4
=0.23×(2×0.7)
=0.23×2×0.7
=0.46×0.7
=0.322
=0.23×1.4
=0.23×(2×0.7)
=0.23×2×0.7
=0.46×0.7
=0.322
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