15X【275÷(23+32)】怎么简便算

2024-11-16 04:15:02
推荐回答(2个)
回答1:

15x[275➗(23+32)]
=15x(275➗55)
=15x(275➗5➗11)
=15x(55➗11)
=15x5
=75

回答2:

=15*(275/55)=15*5=75