Question

简便运算4.53×2.8-0.453×18

Answer 1

4.53×2.8-0.453×18

=4.53×2.8-4.53×1.8

=4.53×（2.8-1.8）

=4.53×1

=4.53

Answer 2

4.53×2.8-0.453×18
=4.53x2.8-4.53x1.8
=4.53x（2.8-1.8）
=4.53x1
=4.53
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