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소수점 1자리 덧셈

1
4.2
+
4.2
=
8.4
2
4.3
+
3.5
=
7.8
3
7.7
+
7.7
=
15.4
4
6.2
+
7.6
=
13.8
5
4.2
+
6.7
=
10.9
6
1.9
+
2.2
=
4.1
7
5.3
+
1.2
=
6.5
8
1.8
+
8.2
=
10
9
4.9
+
4.2
=
9.1
10
3.5
+
2.2
=
5.7
11
4.5
+
3.6
=
8.1
12
5.2
+
4.1
=
9.3
13
1.9
+
2.7
=
4.6
14
3.4
+
3.6
=
7
15
1.9
+
3.2
=
5.1