问题
解答题
简便运算.
|
答案
(1)0.25×32×12.5%,
=(0.25×4)×(8×0.125),
=1×1,
=1;
(2)3.7×0.32+3.2×0.63,
=3.7×0.32+0.32×6.3,
=(3.7+6.3)×0.32,
=10×0.32,
=3.2;
(3)(
+3 4
-5 8
)÷1 2
,1 16
=
×16+3 4
×16-5 8
×16,1 2
=12+10-8,
=14.