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소숫점: 1자리 덧셈57

1
5.7
+
3.1
=
8.8
2
2.1
+
3.5
=
5.6
3
8.3
+
9.2
=
17.5
4
6.5
+
1.5
=
8
5
3.5
+
7.1
=
10.6
6
4.9
+
8.1
=
13
7
4.2
+
3.2
=
7.4
8
4.2
+
1.4
=
5.6
9
1.6
+
5.4
=
7
10
9.2
+
5.2
=
14.4
11
2.6
+
1.9
=
4.5
12
2.3
+
3.4
=
5.7
13
5.9
+
1.9
=
7.8
14
6.2
+
4.2
=
10.4
15
7.3
+
5.7
=
13