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소수점 1자리 덧셈

1
4.7
+
2.7
=
7.4
2
7.8
+
7.3
=
15.1
3
5.5
+
4.7
=
10.2
4
5.7
+
4.4
=
10.1
5
1.9
+
3.7
=
5.6
6
2.2
+
6.6
=
8.8
7
6.1
+
4.4
=
10.5
8
1.3
+
6.2
=
7.5
9
4.2
+
7.9
=
12.1
10
1.5
+
1.5
=
3
11
3.3
+
5.5
=
8.8
12
7.8
+
4.4
=
12.2
13
8.4
+
4.5
=
12.9
14
6.2
+
2.9
=
9.1
15
6.5
+
4.2
=
10.7