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소숫점: 1자리 덧셈19

1
1.9
+
1.2
=
3.1
2
8.4
+
4.6
=
13
3
5.5
+
7.4
=
12.9
4
7.4
+
3.3
=
10.7
5
1.6
+
1.6
=
3.2
6
2.9
+
3.6
=
6.5
7
2.3
+
3.8
=
6.1
8
1.5
+
7.4
=
8.9
9
3.9
+
4.3
=
8.2
10
7.2
+
2.8
=
10
11
8.8
+
4.6
=
13.4
12
5.4
+
5.6
=
11
13
3.1
+
2.3
=
5.4
14
1.6
+
8.1
=
9.7
15
4.7
+
9.8
=
14.5