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소숫점: 1자리 덧셈20

1
2.7
+
5.6
=
8.3
2
6.9
+
1.2
=
8.1
3
4.2
+
4.2
=
8.4
4
2.1
+
1.1
=
3.2
5
2.7
+
4.4
=
7.1
6
8.4
+
7.9
=
16.3
7
1.2
+
5.4
=
6.6
8
9.3
+
2.4
=
11.7
9
1.3
+
3.1
=
4.4
10
5.6
+
7.7
=
13.3
11
4.2
+
1.4
=
5.6
12
8.7
+
5.4
=
14.1
13
1.5
+
7.1
=
8.6
14
5.7
+
6.2
=
11.9
15
5.2
+
1.3
=
6.5