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