问题 解答题
用简便方法计算.
5
6
×4+
5
6
×2
1
3
-
1
6
+
1
4
)×12
0.125×25×32.
答案

(1)

5
6
×4+
5
6
×2,

=

5
6
×(4+2),

=

5
6
×6,

=5;

(2)(

1
3
-
1
6
+
1
4
)×12,

=

1
3
×12-
1
6
×12+
1
4
×12,

=4-2+3,

=5;

(3)0.125×25×32,

=0.125×25×4×8,

=(0.125×8)×(25×4),

=1×100,

=100.

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