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