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소숫점: 1자리 덧셈

1
5.5
+
1.7
=
7.2
2
3.6
+
9.3
=
12.9
3
4.2
+
7.8
=
12
4
2.8
+
2.7
=
5.5
5
2.6
+
1.6
=
4.2
6
5.4
+
4.3
=
9.7
7
3.9
+
9.5
=
13.4
8
5.5
+
3.1
=
8.6
9
1.3
+
3.6
=
4.9
10
4.1
+
1.3
=
5.4
11
9.1
+
5.2
=
14.3
12
5.8
+
3.5
=
9.3
13
4.7
+
2.5
=
7.2
14
4.2
+
9.4
=
13.6
15
6.2
+
3.9
=
10.1