问题 解答题
脱式计算(能简算的要简算)
11
10
-
1
4
-
3
4
1
8
×58+
1
8
×41+
1
8
2
5
×
1
5
+40%×
4
5
5
9
÷5+5÷
5
9
答案

(1)

11
10
-
1
4
-
3
4

=

11
10
-(
1
4
+
3
4
),

=

11
10
-1,

=

1
10

(2)

1
8
×58+
1
8
×41+
1
8

=

1
8
×(58+41+1),

=

1
8
×100,

=

25
2

(3)

2
5
×
1
5
+40%×
4
5

=

2
5
×
1
5
+
2
5
×
4
5

=

2
5
×(
1
5
+
4
5
),

=

2
5
×1,

=

2
5

(4)

5
9
÷5+5÷
5
9

=

1
9
+9,

=9

1
9

单项选择题 A1型题
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