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63 terms

adding

adding
STUDY
PLAY
1+1
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1+2
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1+3
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1+4
5
1+5
6
1+6
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1+7
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1+8
9
1+9
10
2+1
3
2+2
4
2+3
5
2+4
6
2+5
7
2+6
8
2+7
9
2+8
10
2+9
11
3+1
4
3+2
5
3+3
6
3+4
7
3+5
8
3+6
9
3+7
10
3+8
11
3+9
12
4+1
5
4+2
6
4+3
7
4+4
8
4+5
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4+6
10
4+7
11
4+8
12
4+9
13
5+1
6
5+2
7
5+3
8
5+4
9
5+5
10
5+6
11
5+7
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5+8
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5+9
14
6+1
7
6+2
8
6+3
9
6+4
10
6+5
11
6+6
12
6+7
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6+8
14
6+9
15
7+1
8
7+2
9
7+3
10
7+4
11
7+5
12
7+6
13
7+7
14
7+8
15
7+9
16