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