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소숫점: 1자리 덧셈18

1
1.8
+
8.4
=
10.2
2
3.6
+
1.9
=
5.5
3
4.3
+
9.2
=
13.5
4
3.4
+
7.2
=
10.6
5
4.2
+
1.5
=
5.7
6
1.3
+
9.2
=
10.5
7
6.1
+
4.4
=
10.5
8
1.1
+
3.1
=
4.2
9
1.5
+
3.1
=
4.6
10
8.5
+
5.5
=
14
11
2.9
+
4.1
=
7
12
9.1
+
2.5
=
11.6
13
1.5
+
8.8
=
10.3
14
3.4
+
3.5
=
6.9
15
4.4
+
6.5
=
10.9