问题 解答题
脱式计算.(能简算的要简算)
22
27
÷
11
5
×
9
20
3
7
×
1
12
÷
5
6
3
5
×
5
27
×
3
8
5
12
÷8+
1
8
×
7
12
答案

(1)

22
27
÷
11
5
×
9
20

=

10
27
×
9
20

=

1
6

(2)

3
7
×
1
12
÷
5
6

=

1
28
×
6
5

=

3
70

(3)

3
5
×
5
27
×
3
8

=

1
9
×
3
8

=

1
24

(4)

5
12
÷8+
1
8
×
7
12

=

5
12
×
1
8
+
1
8
×
7
12

=(

5
12
+
7
12
)×
1
8

=1×

1
8

=

1
8

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