소수점 1자리 덧셈
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소숫점: 1자리 덧셈28
1
2.8
+
2.9
=
5.7
2
3.5
+
5.8
=
9.3
3
3.1
+
5.4
=
8.5
4
4.7
+
2.2
=
6.9
5
4.6
+
1.2
=
5.8
6
6.2
+
1.7
=
7.9
7
3.9
+
3.2
=
7.1
8
2.9
+
1.3
=
4.2
9
8.1
+
9.1
=
17.2
10
9.4
+
3.1
=
12.5
11
6.2
+
5.5
=
11.7
12
8.7
+
3.4
=
12.1
13
7.1
+
2.5
=
9.6
14
5.8
+
9.1
=
14.9
15
5.8
+
3.5
=
9.3