3.53×45-0.53×4.5该怎样简便运算？

Question

如题所述

Answer 1

脱式计算过程解析3.53×45-0.53×4.5
解题思路:四则运算规则(按顺序计算,先算乘除后算加减,有括号先算括号,有乘方先算乘方)即脱式运算(递等式计算)需在该原则前提下进行
解题过程:
3.53×45-0.53×4.5

=(3.53-0.053)×45

=3.477×45

=156.465

扩展资料←竖式计算-计算结果:先将两乘数末位对齐,然后分别使用第二个乘数,由末位起对每一位数依次乘上一个乘数,最后将所计算结果累加即为乘积,如果乘数为小数可先将其扩大相应的倍数,最后乘积在缩小相应的倍数；
解题过程:
步骤一:5×3477=17385

步骤二:4×3477=139080

根据以上计算步骤组合结果为156.465

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Answer 2

3.53×45-0.53×4.5
=3.53×45-0.053×45
=45×(3.53-0.053)
=156.465

Answer 3

3.53×45-0.53×4.5＝3.53×45-0.53×45×0.1＝45×(3.53-0.053)＝45×(3+0.53-0.053)＝45×(3+0.053×10-0.053)＝45×[3+0.053×(10-1)]＝45×(3+0.053×9)＝45×3.477＝156.465

Answer 4

3.53×45一0.53×45
=（3.53一0.53）×45
=3×45
=135