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소숫점: 1자리 덧셈15

1
1.5
+
5.8
=
7.3
2
5.5
+
2.2
=
7.7
3
4.3
+
5.7
=
10
4
2.3
+
9.3
=
11.6
5
5.1
+
6.7
=
11.8
6
8.5
+
2.5
=
11
7
5.2
+
4.3
=
9.5
8
6.2
+
7.3
=
13.5
9
4.7
+
2.4
=
7.1
10
4.5
+
5.1
=
9.6
11
5.8
+
1.9
=
7.7
12
2.3
+
9.8
=
12.1
13
1.6
+
7.2
=
8.8
14
9.6
+
2.9
=
12.5
15
7.5
+
2.1
=
9.6