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소숫점: 1자리 덧셈15

1
1.5
+
2.4
=
3.9
2
8.5
+
7.8
=
16.3
3
7.3
+
4.9
=
12.2
4
2.3
+
6.4
=
8.7
5
3.9
+
5.5
=
9.4
6
4.5
+
3.5
=
8
7
1.4
+
6.1
=
7.5
8
5.5
+
8.1
=
13.6
9
8.1
+
1.1
=
9.2
10
2.5
+
5.2
=
7.7
11
2.6
+
2.8
=
5.4
12
4.6
+
2.1
=
6.7
13
5.3
+
2.3
=
7.6
14
5.1
+
2.6
=
7.7
15
5.3
+
2.1
=
7.4