题目内容

用递等式计算下面各题,能简算的要简算
5
6
×0.25+
1
4
×
1
6

(
3
4
+
11
6
-
13
24
)×12

3
3
4
×8-3
3
4
×6+3×3.75

863+47.95÷0.35-529.
(1)
5
6
×0.25+
1
4
×
1
6

=
5
6
×
1
4
+
1
4
×
1
6
,
=(
5
6
+
1
6
)×
1
4
,
=1×
1
4
,
=
1
4
;

(2)(
3
4
+
11
6
-
13
24
)×12,
=
3
4
×12+
11
6
×12-
13
24
×12,
=9+22-6
1
2
,
=24
1
2
;

(3)3
3
4
×8-3
3
4
×6+3×3.75
=3
3
4
×8-3
3
4
×6+3×3
3
4
,
=(8-6+3)×3
3
4
,
=5×3
3
4
,
=18
3
4
;

863+47.95÷0.35-529
=863+137-529,
=1000-529,
=471.
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