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Cálculo mental
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6 X 4 + 6 =
30
Oops!
Okay!
6 X 8 - 12 =
36
Oops!
Okay!
9 X 2 + 12=
30
Oops!
Okay!
9 X 7 -12 =
51
Oops!
Okay!
6 X 6 + 12=
48
Oops!
Okay!
734+16=
750
Oops!
Okay!
659+9=
668
Oops!
Okay!
3 X 7 + 5 =
26
Oops!
Okay!
8 X 2 + 3 =
19
Oops!
Okay!
437+7=
444
Oops!
Okay!
9 X 5 - 6 =
39
Oops!
Okay!
2 X 8 - 6 =
10
Oops!
Okay!
9 X 8 - 7=
65
Oops!
Okay!
219+11=
230
Oops!
Okay!
729+18 =
747
Oops!
Okay!
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