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소숫점: 1자리 덧셈40

1
4.2
+
3.2
=
7.4
2
1.4
+
3.1
=
4.5
3
9.2
+
6.3
=
15.5
4
4.8
+
5.1
=
9.9
5
3.5
+
3.4
=
6.9
6
6.3
+
6.3
=
12.6
7
6.4
+
7.4
=
13.8
8
3.4
+
2.8
=
6.2
9
3.4
+
9.8
=
13.2
10
5.5
+
2.3
=
7.8
11
1.3
+
4.4
=
5.7
12
1.3
+
4.2
=
5.5
13
3.1
+
3.1
=
6.2
14
2.4
+
4.5
=
6.9
15
7.1
+
4.1
=
11.2