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Level 7 facts
40 cards·by leah.peterson
0+1
1
2+3
5
4+5
9
6+7
13
8+9
17
4+3
7
10+9
19
5+4
9
2+1
3
5+6
11
9+8
17
7+8
15
6+5
11
3+4
7
1+2
3
6+7
13
5+6
11
8+9
17
10+9
19
7+6
13
0+9
0
4+4
8
2+1
3
2+9
11
10+0
10
9+5
14
6+9
15
7+1
8
3+1
4
7+7
14
9+8
17
4+10
14
3+3
6
6+1
7
2+10
12
10+6
16
10+3
13
1+10
11
9+2
11
1+1
2