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Learn a Fact: 2 x 4

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

Fact Navigator

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2

x4


8

4

x2


8

Move on to other facts:
2
X 3
6
2
X 5
10

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