| 计算下列各题 (1)-4×5×(-0.25) (2)(
(3)-24×(
(4)9
|
答案:
| (1)-4×5×(-0.25), =4×5×0.25, =5;(2)
=-
=-
=-(
=-(8-6-4), =-(-2), =2;(4)9
=(10-
=10×(-19)-
=-190+1, =-189. |

| 计算下列各题 (1)-4×5×(-0.25) (2)(
(3)-24×(
(4)9
|
答案:
| (1)-4×5×(-0.25), =4×5×0.25, =5;(2)
=-
=-
=-(
=-(8-6-4), =-(-2), =2;(4)9
=(10-
=10×(-19)-
=-190+1, =-189. |