题目内容

脱式计算,能简算的要简算.
24×(
3
4
+
1
3
+
5
12
5
12
+
5
8
-
5
6
1
4
÷5+
3
4
×
1
5
23
25
-(
15
17
-
2
25
0.25×32×125256-72+2.4.
(1)24×(
3
4
+
1
3
+
5
12
),
=24×
3
4
+24×
1
3
+24×
5
12

=18+8+10,
=36;

(2)
5
12
+
5
8
-
5
6

=
25
24
-
20
24

=
5
24


(3)
1
4
÷5+
3
4
×
1
5

=
1
4
×
1
5
+
3
4
×
1
5

=(
1
4
+
3
4
)×
1
5

=1×
1
5

=
1
5


(4)
23
25
-(
15
17
-
2
25
),
=
23
25
+
2
25
-
15
17

=1-
15
17

=
2
17


(5)0.25×32×125,
=0.25×4×8×125,
=(0.25×4)×(8×125),
=1×1000,
=1000;

(6)256-72+2.4,
=184+2.4,
=186.4.
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