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소숫점: 1자리 덧셈

1
3.9
+
3.4
=
7.3
2
9.3
+
7.3
=
16.6
3
1.3
+
1.5
=
2.8
4
3.1
+
2.8
=
5.9
5
5.2
+
3.4
=
8.6
6
3.7
+
4.5
=
8.2
7
4.9
+
7.4
=
12.3
8
6.2
+
7.6
=
13.8
9
4.9
+
4.2
=
9.1
10
7.3
+
4.5
=
11.8
11
1.1
+
5.7
=
6.8
12
5.1
+
4.6
=
9.7
13
6.8
+
2.1
=
8.9
14
8.5
+
2.1
=
10.6
15
2.9
+
7.1
=
10