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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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98 Cards in this Set

  • Front
  • Back
4 + 16=
20
2 + 19=
21
2 + 18=
20
2 + 15=
17
2 + 14=
16
2 + 13=
15
2 + 12=
14
2 + 10=
12
1 + 20=
21
1 + 19
20
1 + 18=
19
1 + 17=
18
1 + 16=
17
1 + 14=
15
1 + 13=
14
1 + 12=
13
1 + 11=
12
0 + 20=
20
3 + 19=(Hint: Same as 20 + 2)
22
3 + 18=
21
3 + 17=
20
3 + 16=
19
3 + 15=
18
3 + 14=
17
3 + 13=
16
3 + 12=
15
3 + 11=
14
4 + 10
14
3 + 20=
23
3 + 10
13
2 + 20=
22
1 + 10=
1
4 + 11=
15
4 + 15=
19
4 + 14=
18
4 + 13=
17
4 + 12=
16
4 + 20=
24
4 + 19 = (Hint: Same as 3 + 20)
23
4 + 18
22
4 + 17=
21
0 + 14=
14
0 + 16=
16
1 + 0=
0
2 + 0=
2
2 + 1=
3
3 + 0=
3
3 + 1=
4
3 + 2=
5
4 + 0=
4
4 + 1=
5
4 + 2=
6
4 + 3=
7
2 + 11=
13
0 + 11=
11
0 + 12=
12
0 + 13=
13
1 + 15=
16
0 + 19=
19
0 + 18=
18
0 + 17=
17
0 + 16=
16
0 + 15=
15
0 + 14=
14
2 + 17=
19
2 + 16=
18
0 + 10=
10
0 + 9=
9
0 + 8=
8
0 + 7=
7
0 + 6=
6
0 + 5=
5
0 + 4=
4
0 + 3 =
3
0 + 2=
2
0 + 1=
1
4 + 9=(Hint: Same as 10 + 3)
13
3 + 9=(Hint: same as 2 + 10)
12
3 + 8=
11
3 + 7=
10
3 + 6=
9
3 + 5=
8
3 + 4=
7
2 + 9=
11
2 + 8=
10
2 + 7=
9
2 + 6=
8
2 + 5=
7
2 + 4=
6
2 + 3=
5
1 + 9=
10
1 + 8=
9
1 + 7=
8
1 + 6=
7
1 + 5=
6
1 + 4=
5
1 + 3=
4
1 + 2=
3