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소숫점: 1자리 덧셈28

1
2.8
+
2.1
=
4.9
2
3.1
+
7.4
=
10.5
3
4.3
+
5.5
=
9.8
4
5.6
+
3.2
=
8.8
5
1.3
+
4.2
=
5.5
6
4.2
+
6.3
=
10.5
7
6.6
+
1.1
=
7.7
8
1.3
+
7.6
=
8.9
9
6.1
+
3.1
=
9.2
10
5.4
+
3.8
=
9.2
11
7.1
+
3.2
=
10.3
12
6.1
+
6.3
=
12.4
13
5.6
+
1.9
=
7.5
14
2.1
+
8.3
=
10.4
15
4.1
+
2.2
=
6.3