120÷1.5 100÷1.5×2脱式计算

2025-02-25 16:24:04
推荐回答(1个)
回答1:

120÷1.5+ 100÷1.5×2
=(120 +100x2)÷1.5
=320÷1.5
=320x(2/3)
=640/3