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소숫점: 1자리 덧셈31

1
3.1
+
2.1
=
5.2
2
9.7
+
4.7
=
14.4
3
3.7
+
3.3
=
7
4
9.9
+
2.9
=
12.8
5
2.8
+
1.4
=
4.2
6
6.2
+
2.9
=
9.1
7
4.6
+
1.5
=
6.1
8
6.1
+
9.6
=
15.7
9
1.4
+
4.6
=
6
10
6.2
+
8.4
=
14.6
11
3.4
+
3.7
=
7.1
12
2.8
+
1.1
=
3.9
13
4.5
+
8.1
=
12.6
14
1.1
+
9.7
=
10.8
15
1.2
+
3.7
=
4.9