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소숫점: 1자리 덧셈40

1
4.5
+
2.9
=
7.4
2
1.4
+
5.7
=
7.1
3
7.9
+
5.6
=
13.5
4
1.3
+
8.7
=
10
5
5.2
+
6.4
=
11.6
6
2.1
+
6.3
=
8.4
7
4.3
+
1.6
=
5.9
8
5.6
+
1.6
=
7.2
9
6.2
+
8.1
=
14.3
10
3.1
+
1.7
=
4.8
11
1.1
+
2.1
=
3.2
12
6.1
+
4.6
=
10.7
13
2.1
+
2.1
=
4.2
14
1.6
+
2.6
=
4.2
15
2.5
+
3.8
=
6.3