题目内容

选择你喜欢方法计算.
24-24×
5
6
9
10
×
3
5
5
12
÷
5
9
70.8-1.25-1.75
11
9
×3.8-3.8×
2
9
3
8
+
2
3
)÷
1
24
(1)24-24×
5
6

=24-20
=4,

(2)5÷
9
10
×
3
5

=5×
10
9
×
3
5

=
10
3


(3)4×
5
12
÷
5
9

=4×
5
12
×
9
5

=3,

(4)70.8-1.25-1.75,
=70.8-(1.25+1.75),
=70.8-3,
=77.8,

(5)
11
9
×3.8-3.8×
2
9

=3.8×(
11
9
-
2
9
),
=3.8×1,
=3.8.

(6)(
3
8
+
2
3
)÷
1
24

=(
3
8
+
2
3
)×24,
=
3
8
×24+
2
3
×24,
=9+16,
=25.
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