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Càlcul mental - Quiz
Contributed by: Perez
  • 1. 12*12
A) 121
B) 24
C) 144
D) 122
  • 2. 13*13
A) 169
B) 256
C) 196
D) 121
  • 3. 15*15
A) 256
B) 1515
C) 225
D) 30
  • 4. 17*17
A) 289
B) 361
C) 169
D) 298
  • 5. 20*20
A) 40
B) 400
C) 200
D) 20
  • 6. 19*19
A) 121
B) 361
C) 39
D) 261
  • 7. 14+14
A) 256
B) 144
C) 28
D) 196
  • 8. 11*13
A) 143
B) 145
C) 153
D) 133
  • 9. 18*18
A) 364
B) 324
C) 264
D) 164
  • 10. 11*11
A) 1111
B) 22
C) 121
D) 111
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