题目内容

(1)
1
7
+
3
7
=
(2)
2
5
+
1
5
=
(3)
9
20
+
4
20
=
(4)
6
43
+
16
43
=
(5)
50
77
+
10
77
=
(6)
115
800
+
345
800
=
(7)
3
9
+
4
9
+
1
9
=
(8)
5
32
+
6
32
+
7
32
+
8
32
=

(1)
1
7
+
3
7
=
4
7

(2)
2
5
+
1
5
=
3
5

(3)
9
20
+
4
20
=
13
20

(4)
6
43
+
16
43
=
22
43

(5)
50
77
+
10
77
=
60
77

(6)
115
800
+
345
800
=
23
40

(7)
3
9
+
4
9
+
1
9
=
8
9

(8)
5
32
+
6
32
+
7
32
+
8
32
=
13
16
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