소수점 1자리 덧셈
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소숫점: 1자리 덧셈19
1
1.9
+
1.1
=
3
2
7.4
+
5.5
=
12.9
3
1.5
+
1.1
=
2.6
4
4.7
+
2.8
=
7.5
5
2.3
+
8.6
=
10.9
6
1.1
+
7.3
=
8.4
7
4.6
+
5.1
=
9.7
8
3.7
+
4.6
=
8.3
9
8.5
+
8.5
=
17
10
1.1
+
2.4
=
3.5
11
8.5
+
6.2
=
14.7
12
5.4
+
3.4
=
8.8
13
2.7
+
7.3
=
10
14
8.5
+
7.7
=
16.2
15
6.2
+
2.8
=
9