소수점 1자리 덧셈
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소숫점: 1자리 덧셈20
1
2.7
+
1.4
=
4.1
2
3.9
+
4.3
=
8.2
3
7.2
+
3.8
=
11
4
3.1
+
3.6
=
6.7
5
6.7
+
2.5
=
9.2
6
3.9
+
3.6
=
7.5
7
5.3
+
8.6
=
13.9
8
1.6
+
2.2
=
3.8
9
8.6
+
3.5
=
12.1
10
3.7
+
3.8
=
7.5
11
4.3
+
5.5
=
9.8
12
5.4
+
4.6
=
10
13
2.4
+
5.7
=
8.1
14
3.9
+
8.2
=
12.1
15
6.5
+
8.5
=
15