소수점 1자리 덧셈
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소숫점: 1자리 덧셈20
1
2.1
+
1.5
=
3.6
2
3.1
+
6.9
=
10
3
5.6
+
8.1
=
13.7
4
3.4
+
3.2
=
6.6
5
4.8
+
4.6
=
9.4
6
6.9
+
9.6
=
16.5
7
1.1
+
1.3
=
2.4
8
6.2
+
3.5
=
9.7
9
4.3
+
8.3
=
12.6
10
9.3
+
7.8
=
17.1
11
4.5
+
7.5
=
12
12
5.3
+
5.2
=
10.5
13
4.1
+
2.9
=
7
14
8.1
+
2.2
=
10.3
15
5.3
+
6.2
=
11.5