能用简便方法的用简便方法计算.105×32-3232÷32125×313×0.8×310(17-19)×63-23210.5×[(6.05-3.35)÷1.5](56-34)×25÷120.75×16+34×5-75%.-六年级数学
题文
能用简便方法的用简便方法计算. 105×32-3232÷32 125×3
(
210.5×[(6.05-3.35)÷1.5] (
0.75×16+
|
答案
(1)105×32-3232÷32, =3360-101, =3159; (2)125×3
=125×0.8×(
=100×1, =100; (3)(
=
=9-7-
=2-
=1
(4)210.5×[(6.05-3.35)÷1.5], =210.5×[(6.05-3.35)÷1.5], =210.5×[2.7÷1.5], =210.5×1.8, =378.9; (5)(
=(
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