初一有理数的乘法,计算 (1/2)×(2/3)×(-0.25)×3/2＝ (-4)×2/3×(-0
初一有理数的乘法,计算
(1/2)×(2/3)×(-0.25)×3/2＝
(-4)×2/3×(-0.25)×3/2＝
(-5)×(-4)×(-1/4)
(-4又1/20)×(+2.5)×(-8)