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