(1) (-24分之5)×15分之8×(-2分之3)×4分之1

问题描述:

(1) (-24分之5)×15分之8×(-2分之3)×4分之1
(2) (-4)×7×(-1)×(-0.25)
(3) 23+(-17)+6+(-22)
(4) (-2)+3+1+(-3)+2+(-4)

(1) (-24分之5)×15分之8×(-2分之3)×4分之1
=-5/24×8/15×(-3/2)×1/4
=-1/9×(-3/8)
=1/24
(2) (-4)×7×(-1)×(-0.25)
=-28×(-1/4)
=7
(3) 23+(-17)+6+(-22)
=6+6-22
=12-22
=-10
(4) (-2)+3+1+(-3)+2+(-4)
=-3+3+1-3+2-4
=-4