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소숫점: 1자리 덧셈78

1
7.8
+
9.9
=
17.7
2
1.8
+
6.1
=
7.9
3
4.1
+
1.1
=
5.2
4
6.4
+
1.1
=
7.5
5
4.4
+
6.9
=
11.3
6
2.4
+
9.3
=
11.7
7
6.5
+
5.2
=
11.7
8
6.3
+
3.3
=
9.6
9
1.5
+
1.2
=
2.7
10
5.2
+
8.2
=
13.4
11
4.6
+
9.6
=
14.2
12
1.8
+
1.9
=
3.7
13
2.7
+
8.4
=
11.1
14
6.9
+
2.8
=
9.7
15
1.5
+
2.1
=
3.6