소숫점: 1자리 덧셈
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소숫점: 1자리 덧셈
1
3.9
+
4.9
=
8.8
2
8.4
+
1.3
=
9.7
3
5.1
+
8.4
=
13.5
4
2.3
+
5.5
=
7.8
5
3.7
+
4.1
=
7.8
6
4.5
+
1.4
=
5.9
7
2.8
+
2.5
=
5.3
8
6.2
+
1.3
=
7.5
9
2.5
+
1.7
=
4.2
10
2.2
+
3.1
=
5.3
11
6.6
+
4.6
=
11.2
12
9.5
+
8.3
=
17.8
13
7.1
+
1.3
=
8.4
14
8.2
+
9.2
=
17.4
15
2.7
+
5.9
=
8.6