0.423✘3.3+4.23✘0.67怎样简便运算?
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0.423x3.3+4.23x0.67的简便运算:
0.423x3.3+4.23x0.67
=4.23x0.33+4.23x0.67
=4.23x(0.33+0.67)
=4.23x1
=4.23
0.423x3.3+4.23x0.67
=4.23x0.33+4.23x0.67
=4.23x(0.33+0.67)
=4.23x1
=4.23
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0.423×3.3+4.23×0.67
=(0.423×10)×(3.3÷10)+4.23×0.67
=4.23×0.33+4.23×0.67
=(0.33+0.67)×4.23
=1×4.23
=4.23
=(0.423×10)×(3.3÷10)+4.23×0.67
=4.23×0.33+4.23×0.67
=(0.33+0.67)×4.23
=1×4.23
=4.23
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根据题意,计算过程如下,以下简便方法用到乘法分配律,找相同因子,凑整计算。
0.423✘3.3+4.23✘0.67
=4.23×0.33+4.23×0.67
=4.23×(0.33+0.67)
=4.23×1
=4.23
0.423✘3.3+4.23✘0.67
=4.23×0.33+4.23×0.67
=4.23×(0.33+0.67)
=4.23×1
=4.23
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=0.423*3.3+4.23*0.67
=4.23*0.1*3.3+4.23*0.67
=4.23*0.33+4.23*0.67
=4.23*(0.33+0.67)
=4.23*1
=4.23
=4.23*0.1*3.3+4.23*0.67
=4.23*0.33+4.23*0.67
=4.23*(0.33+0.67)
=4.23*1
=4.23
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