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Refuerzo 2 (multiplicación y división enteros)
  • 1. - 6+4 . 9 =
A) -28
B) +30
C) 1
D) 32
  • 2. (9 - 4) . 6 - 2 =
A) 28
B) +33
C) -17
D) -26
  • 3. - 2 . [ - 3 + 4 . (- 3 + 5 . 7 ) ] + 2 =
A) -43
B) +19
C) 0
D) -248
  • 4. 6 . (- 4) + (- 5 ) . (- 12) - 3 . 9 +6 =
A) +21
B) 0
C) -13
D) 15
  • 5. - 12 . (- 6) + 4 . [- 3 . 5 + ( 4 - 6 . 8)]=
A) -164
B) -82
C) -1
D) +96
  • 6. (+ 4 ) . (+ 15) =
A) -5
B) +72
C) + 60
D) -58
  • 7. (-10) . (+8)=
A) -80
B) -85
C) -75
D) -98
  • 8. (+5) . (-7)=
A) -35
B) -28
C) +32
D) +21
  • 9. (-21): (-3)=
A) +9
B) -7
C) +7
D) -9
  • 10. (-3) : (-3)=
A) -1
B) +1
C) +11
D) -11
  • 11. (-36) : (-6) : (-2) =
A) +3
B) -10
C) -3
D) +12
  • 12. (+40) : (-10) . (+2) =
A) +6
B) -8
C) +4
D) 2
  • 13. (- 3) . [ (+ 7) + (- 2)] =
A) -15
B) +13
C) +12
D) +14
  • 14. (6 - 2 - 10) : (5 - 11) =
A) -14
B) 1
C) -12
D) 4
  • 15. 5 - [ 7 - 2- (1 - 9) - 3 + 12] + 4 =
A) -18
B) +20
C) -9
D) - 13
  • 16. 6 - (- 9 + 7 - 1) - [ 3 - (- 5 + 4 + 6 ) - 1 ] =
A) -31
B) -12
C) + 12
D) -28
  • 17. [ - 2 + 3 . (2 - 5 ) : 3] - [( 3 - 5 + 2 ) - 2 . (3 - 4)] =
A) -11
B) +9
C) -7
D) -2
  • 18. [15 . (- 4) + 8 . (- 3 . 9 + 11) +2 ] - (- 4) . (6 -5) =
A) -182
B) -99
C) +58
D) -65
  • 19. 2 - 3 . {- 5 + 6 . [ 4 - 9 . ( 2 - 7)+ 5 - 4 . 3 ] - 5 . 4}=
A) -567
B) -689
C) -679
D) -721
  • 20. -6 . (- 15 + 3 . 8) - 16 . [5 - 9 . (6 -5 . 5 ) - 2 ] =
A) -128
B) -251
C) -96
D) -2838
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