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Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

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10 Cards in this Set

  • Front
  • Back
  • 3rd side (hint)
1+2
3
1+1=2 so 1+2=?
2+3
5
2+2=4 so 2+3=?
3+4
7
3+3=6 so 3+4=?
4+5
9
4+4=8 so 4+5=?
5+6
11
5+5=10 so 5+6=?
6+7
13
6+6=12 so 6+7=?
7+8
15
7+7=14 so 7+8=?
8+9
17
8+8=16 so 8+9=?
9+10
19
9+9=18 so 9+10=?
10+11
21
10+10=20 so 10+11=?