小数四则运算要简便?

2024-12-05 04:31:29
推荐回答(1个)
回答1:

(9)1.2×99
(10)9÷0.25
(11)4.7×5.9+5.2×4.7-4.7×0.1
(12)3.6×2.4+36×0.76
(13)(3.25×7+3.25)×0.125
(14)37.5÷8÷1.25
(15)1.11-8.5×(7.1-0.11)×0