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