소수점 1자리 덧셈
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소숫점: 1자리 덧셈30
1
3.9
+
4.2
=
8.1
2
2.5
+
5.4
=
7.9
3
1.3
+
2.3
=
3.6
4
4.2
+
5.5
=
9.7
5
9.5
+
4.6
=
14.1
6
3.7
+
2.2
=
5.9
7
2.7
+
6.2
=
8.9
8
5.5
+
8.4
=
13.9
9
2.3
+
3.8
=
6.1
10
9.5
+
3.6
=
13.1
11
8.3
+
5.4
=
13.7
12
5.9
+
4.2
=
10.1
13
3.2
+
4.7
=
7.9
14
8.4
+
3.4
=
11.8
15
5.3
+
8.5
=
13.8