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소숫점: 1자리 덧셈15

1
1.5
+
4.2
=
5.7
2
6.1
+
2.1
=
8.2
3
2.2
+
3.7
=
5.9
4
8.6
+
4.3
=
12.9
5
7.2
+
5.6
=
12.8
6
2.2
+
5.8
=
8
7
9.2
+
3.8
=
13
8
8.2
+
3.1
=
11.3
9
3.2
+
9.5
=
12.7
10
5.1
+
1.9
=
7
11
7.2
+
8.6
=
15.8
12
4.3
+
7.3
=
11.6
13
7.5
+
7.7
=
15.2
14
1.8
+
2.2
=
4
15
1.9
+
1.5
=
3.4