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Cálculo mental
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60x4 +40=
280
Oops!
Okay!
200/10+20=
40
Oops!
Okay!
100/4 +125=
150
Oops!
Okay!
6x5 -28=
2
Oops!
Okay!
67+12-6=
73
Oops!
Okay!
7x5+8=
43
Oops!
Okay!
80+94-65=
109
Oops!
Okay!
45x6 -250=
20
Oops!
Okay!
75x3 +50=
275
Oops!
Okay!
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