0.648÷(0.4 0.5)x0.6简便方法?

0.648÷(0.4+0.5)ⅹ0.6?
2025-02-03 05:41:51
推荐回答(1个)
回答1:

0.648÷(0.4+0.5)x0.6
= 0.648÷0.9x0.6
= 0.648x(0.6÷0.9)
= 0.648x2/3
= 0.648÷3×2
= 0.216×2
= 0.432