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소수점 1자리 덧셈

1
4.2
+
2.1
=
6.3
2
9.9
+
9.4
=
19.3
3
5.5
+
3.9
=
9.4
4
3.3
+
9.2
=
12.5
5
4.6
+
1.5
=
6.1
6
1.1
+
8.4
=
9.5
7
8.6
+
1.7
=
10.3
8
7.5
+
5.1
=
12.6
9
4.6
+
9.3
=
13.9
10
8.4
+
3.8
=
12.2
11
7.1
+
5.4
=
12.5
12
3.6
+
4.9
=
8.5
13
2.2
+
7.2
=
9.4
14
6.2
+
2.2
=
8.4
15
3.2
+
4.4
=
7.6