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87-32+45=(  )  56+21-21=(   )  48+32-16=(   )

答案:100;56;64
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科目:小学数学 来源: 题型:

算一算.
32+45=
24+42= 76-52= 38+45=
24+49= 76-58= 47-22= 87-35=

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科目:小学数学 来源: 题型:

(1)
7
10
+(
4
7
+
1
2
7
25
(2)[1-(
1
4
+
3
8
)]÷
1
4
(3)(
9
16
+
9
8
3
8
(4)
5
2
÷
1
8
×
1
8
×4
(5)
1
7
+
7
8
×
5
7
+
3
8
(6)
12
5
×(
5
6
+
3
4
)+
4
5
(7)11
1
12
-3
1
7
-2
6
7
(8)3.87÷
3
2
-0.87×
2
3

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科目:小学数学 来源: 题型:

3
4
×2
=
1
6
+
1
2
=
5
9
÷5
=
1
12
×
6
7
=
3
4
÷3
=
5
4
×
5
4
=
5
8
÷1
=
5-
2
3
=
3
9
×12
=
3
5
×
5
12
=
4-
2
3
=
7
12
×3
=
2
7
÷14
=
8+
3
5
=
13
30
=
39×
3
13
=
1
2
=
5
6
÷
3
4
=
12
7
=
20÷
4
5
=
1-
9
10
=
2.5×16=
5
12
÷
1
6
=
3
2
×
4
5
=
8
15
÷24
=
11÷
22
8
=
1
2
÷
3
8
=
4
7
÷
2
3
=
3
4
+
1
7
=
1.5÷0.05=
1
9
×9
=
1.5÷0.05=
5
8
÷
7
12
=
4
5
×
2
3
×
5
6
=
5
9
×
2
5
=
2.5×0.4=
14×
5
16
=
(
1
2
+
1
3
)×12
=
14
33
×
3
7
=
7
9
=
5
8
×
5
8
=
5
21
+
4
7
=
7
9
÷7
=
2-
1
4
=
3
5
-
1
8
=
4
21
÷
8
7
=
2
3
-
1
4
=
6.25+1.75=
1
2
÷
7
18
=
9
10
×6
=
1
8
+
1
9
=
3
4
÷
4
3
=
1
2
×
2
3
=
12-
5
7
=
2
5
=
2
9
÷18
=
7
28
÷
2
9
=
10×1×
2
5
=
20÷
4
5
=
1
3
×9+9×
2
3
=
42÷
21
23
=
3
8
÷12
=

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科目:小学数学 来源:数学教研室 题型:022

87-32+45=(  )  56+21-21=(   )  48+32-16=(   )

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