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Learn a Fact: 2 x 9

1
2
x  8
2
9
x  0
3
1
x  7
4
2
x  7
5
2
x  1
6
1
x  9
7
6
x  1
8
1
x  3
9
1
x  5
10
1
x  1
11
5
x  2
12
4
x  1
13
6
x  2
14
2
x  2
15
0
x  8
16
9
x  2
17
1
x  8
18
4
x  2
19
7
x  0
20
3
x  2

Fact Navigator

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2

x9


18

9

x2


18

Move on to other facts:
2
X 8
16
3
X 0
0

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