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소숫점: 1자리 덧셈60

1
6.3
+
2.8
=
9.1
2
2.2
+
2.6
=
4.8
3
2.7
+
4.6
=
7.3
4
3.5
+
9.6
=
13.1
5
2.1
+
2.7
=
4.8
6
8.5
+
1.9
=
10.4
7
1.2
+
2.4
=
3.6
8
6.4
+
9.7
=
16.1
9
2.2
+
9.5
=
11.7
10
7.4
+
1.8
=
9.2
11
3.2
+
1.2
=
4.4
12
1.7
+
3.2
=
4.9
13
2.6
+
1.1
=
3.7
14
2.2
+
2.2
=
4.4
15
9.3
+
2.1
=
11.4