问题 解答题
简便运算.
0.25×32×12.5%3.7×0.32+3.2×0.63
3
4
+
5
8
-
1
2
)÷
1
16
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

=

3
4
×16+
5
8
×16-
1
2
×16,

=12+10-8,

=14.

单项选择题
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