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8b-Röð aðgerða (grunnur 2)
Contributed by: Sverrisson
  • 1. Skástrik / þýðir deiling
A) Ég skil
B) Ég skil ekki
  • 2. Tala fyrir framan sviga er margföldun. Dæmi: 3(2+5) = 3 sinnum sviginn (2+5) = 3x7=21
A) Ég skil
B) Ég skil ekki
  • 3. 8 + 2(9-2)
A) 15
B) 22
C) 70
D) UMM
  • 4. 4(28 - 21) + 3
A) 7
B) 31
C) 21
D) 13
  • 5. 35 / (12-7) x 2
A) 14
B) 16
C) 3.5
D) -8.16
  • 6. 6(44-21) - 55
A) -188
B) 83
C) 188
D) 82
  • 7. 8 + 3(12 + 11)
A) 79
B) 333
C) 363
D) 77
  • 8. 7(2 + 7) - 15
A) -72
B) 72715
C) 48
D) 42
  • 9. 6(5 + 5) + (45 - 13)
A) 92
B) 64
C) 31
D) 29
  • 10. 9(2 + 9) - 5 x 8
A) 60
B) 59
C) 55
D) 45
  • 11. 6(7 - 1) + ( 3 + 11)
A) 45
B) 36
C) 12
D) 50
  • 12. 6(7-1) + (3+11)
A) 120
B) 150
C) 50
D) 25
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