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double digit addition
Contributed by: Lopez
  • 1. 10+10
A) 50
B) 20
C) 40
D) 30
  • 2. 12+10
A) 23
B) 0
C) 11
D) 22
  • 3. 9+1
A) 22
B) 10
C) 12
D) 220
  • 4. 12+12
A) 24
B) 6
C) 8
D) 7
  • 5. 12+10
A) 1
B) 32
C) 00
D) 20
  • 6. 20+20
A) 12
B) 40
C) 30
D) 15
  • 7. 30+30
A) 40
B) 30
C) 60
D) 20
  • 8. 40+40
A) 20
B) 30
C) 10
D) 80
  • 9. 11+11
A) 22
B) 10
C) 20
D) 20
  • 10. 14+10
A) 24
B) 10
C) 40
D) 20
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