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소숫점: 1자리 덧셈18

1
1.8
+
6.5
=
8.3
2
7.7
+
3.7
=
11.4
3
6.2
+
5.3
=
11.5
4
6.3
+
3.2
=
9.5
5
5.2
+
7.4
=
12.6
6
1.7
+
2.5
=
4.2
7
2.3
+
2.2
=
4.5
8
6.3
+
7.3
=
13.6
9
2.9
+
4.2
=
7.1
10
1.1
+
1.1
=
2.2
11
3.5
+
1.9
=
5.4
12
2.8
+
2.3
=
5.1
13
8.5
+
1.6
=
10.1
14
2.7
+
8.3
=
11
15
4.9
+
4.5
=
9.4