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소숫점: 1자리 덧셈

1
2.8
+
7.4
=
10.2
2
7.1
+
5.2
=
12.3
3
2.4
+
3.2
=
5.6
4
3.3
+
8.5
=
11.8
5
3.3
+
8.4
=
11.7
6
7.7
+
4.1
=
11.8
7
7.8
+
2.2
=
10
8
7.2
+
1.5
=
8.7
9
4.4
+
5.5
=
9.9
10
1.6
+
5.5
=
7.1
11
3.3
+
7.1
=
10.4
12
1.6
+
6.2
=
7.8
13
6.8
+
7.6
=
14.4
14
1.8
+
2.1
=
3.9
15
6.2
+
8.7
=
14.9