十六点五乘二点五加二点五乘七点五的和除以0.12的简便预算

2025-02-03 05:38:42
推荐回答(1个)
回答1:

(16.5×2.5+2.5×7.5)÷0.12
=2.5×(16.5+7.5)÷0.12
=2.5×24÷0.12
=2.5×(24÷0.12)
=2.5×200
=500