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소숫점: 1자리 덧셈55

1
5.5
+
2.3
=
7.8
2
4.6
+
1.5
=
6.1
3
7.7
+
4.8
=
12.5
4
1.3
+
1.3
=
2.6
5
7.5
+
4.9
=
12.4
6
4.7
+
8.5
=
13.2
7
1.8
+
1.8
=
3.6
8
1.4
+
6.1
=
7.5
9
2.4
+
2.6
=
5
10
5.3
+
4.6
=
9.9
11
3.6
+
1.5
=
5.1
12
2.2
+
3.9
=
6.1
13
5.5
+
8.9
=
14.4
14
7.2
+
6.1
=
13.3
15
7.2
+
1.4
=
8.6