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Suma y resta
Autor :
Katherin Montesinos
1.
20 + 35
A.
54
B.
55
C.
50
2.
41 - 16
A.
25
B.
27
C.
23
3.
15 + 22
A.
37
B.
39
C.
40
4.
28 + 26
A.
56
B.
57
C.
54
5.
36 - 19
A.
16
B.
17
C.
19