题目内容

脱式计算,能简算的要简算
7
9
×
11
5
+
2
9
×
11
5

1
4
+
5
6
-
2
3
)×24
4
5
+
1
4
)÷
7
3
+
7
10
(1)
7
9
×
11
5
+
2
9
×
11
5

=(
7
9
+
2
9
)×
11
5

=1×
11
5

=
11
5


(2)(
1
4
+
5
6
-
2
3
)×24,
=
1
4
×24+
5
6
×24-
2
3
×24,
=6+20-16,
=26-16,
=10;

(3)(
4
5
+
1
4
)÷
7
3
+
7
10

=
21
20
÷
7
3
+
7
10

=
9
20
+
7
10

=
23
20
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