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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) 70
C) 22
D) UMM
  • 4. 4(28 - 21) + 3
A) 13
B) 21
C) 31
D) 7
  • 5. 35 / (12-7) x 2
A) 3.5
B) 14
C) -8.16
D) 16
  • 6. 6(44-21) - 55
A) 83
B) -188
C) 82
D) 188
  • 7. 8 + 3(12 + 11)
A) 77
B) 363
C) 79
D) 333
  • 8. 7(2 + 7) - 15
A) -72
B) 42
C) 72715
D) 48
  • 9. 6(5 + 5) + (45 - 13)
A) 64
B) 92
C) 31
D) 29
  • 10. 9(2 + 9) - 5 x 8
A) 45
B) 55
C) 59
D) 60
  • 11. 6(7 - 1) + ( 3 + 11)
A) 45
B) 36
C) 50
D) 12
  • 12. 6(7-1) + (3+11)
A) 150
B) 50
C) 120
D) 25
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