4.2÷0.125+58x0.8简便计算

4.2÷0.125+58x0.8简便计算
2025-04-06 07:55:25
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回答1:

4.2÷0.125+58x0.8简便计算
4.2÷0.125+58x0.8
=4.2*8+58*0.8
=0.8*(42+58)

=0.8*100
=80