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소수점 1자리 덧셈

1
1.7
+
4.2
=
5.9
2
9.8
+
4.6
=
14.4
3
1.4
+
2.9
=
4.3
4
2.1
+
8.7
=
10.8
5
2.3
+
1.5
=
3.8
6
6.4
+
5.3
=
11.7
7
9.3
+
2.8
=
12.1
8
8.4
+
7.8
=
16.2
9
2.3
+
9.9
=
12.2
10
7.1
+
8.2
=
15.3
11
4.6
+
2.9
=
7.5
12
5.1
+
3.1
=
8.2
13
1.5
+
1.9
=
3.4
14
8.3
+
5.2
=
13.5
15
5.3
+
1.3
=
6.6