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소숫점: 1자리 덧셈21

1
2.1
+
2.7
=
4.8
2
3.5
+
5.3
=
8.8
3
8.3
+
1.9
=
10.2
4
3.7
+
7.3
=
11
5
8.9
+
1.3
=
10.2
6
1.5
+
6.1
=
7.6
7
8.5
+
2.2
=
10.7
8
6.6
+
3.1
=
9.7
9
7.4
+
1.6
=
9
10
3.8
+
4.9
=
8.7
11
5.4
+
2.3
=
7.7
12
3.7
+
3.8
=
7.5
13
5.4
+
3.3
=
8.7
14
7.1
+
6.1
=
13.2
15
7.3
+
5.5
=
12.8