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소숫점: 1자리 덧셈63

1
6.3
+
1.5
=
7.8
2
5.5
+
2.1
=
7.6
3
2.3
+
4.3
=
6.6
4
5.1
+
5.4
=
10.5
5
5.8
+
6.6
=
12.4
6
3.5
+
5.9
=
9.4
7
8.4
+
1.6
=
10
8
2.3
+
5.4
=
7.7
9
3.6
+
5.8
=
9.4
10
3.8
+
1.7
=
5.5
11
9.1
+
3.9
=
13
12
3.5
+
2.2
=
5.7
13
2.3
+
7.5
=
9.8
14
2.9
+
9.1
=
12
15
9.9
+
8.1
=
18