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소숫점: 1자리 덧셈13

1
1.3
+
1.8
=
3.1
2
8.2
+
9.9
=
18.1
3
4.2
+
6.3
=
10.5
4
6.3
+
6.1
=
12.4
5
4.5
+
5.1
=
9.6
6
8.4
+
4.5
=
12.9
7
4.5
+
6.8
=
11.3
8
2.1
+
8.9
=
11
9
7.1
+
8.5
=
15.6
10
1.8
+
3.3
=
5.1
11
7.8
+
6.4
=
14.2
12
2.8
+
2.7
=
5.5
13
4.2
+
2.5
=
6.7
14
5.5
+
3.3
=
8.8
15
3.4
+
1.6
=
5