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소수점 1자리 덧셈

1
1.7
+
7.7
=
9.4
2
1.1
+
1.1
=
2.2
3
3.4
+
5.5
=
8.9
4
6.4
+
9.3
=
15.7
5
7.4
+
3.4
=
10.8
6
7.6
+
1.9
=
9.5
7
2.8
+
3.5
=
6.3
8
6.8
+
5.5
=
12.3
9
1.1
+
3.1
=
4.2
10
2.3
+
6.7
=
9
11
3.6
+
7.2
=
10.8
12
6.3
+
9.2
=
15.5
13
8.7
+
2.1
=
10.8
14
9.4
+
8.2
=
17.6
15
6.8
+
4.8
=
11.6