Chiara Coetzee
Chiara Coetzee
Adding 123456789 to itself on abacus in left-to-right order - Step 13
I'm now adding 7 in the 7th position from the left. This is done in 3 steps: add 10, subtract 5, add 2. In this step I add 10 by adding 1 in the 6th position from the left.
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Uploaded on January 28, 2012
Taken on January 27, 2012
Adding 123456789 to itself on abacus in left-to-right order - Step 13
I'm now adding 7 in the 7th position from the left. This is done in 3 steps: add 10, subtract 5, add 2. In this step I add 10 by adding 1 in the 6th position from the left.
2,368
views
0
faves
0
comments
Uploaded on January 28, 2012
Taken on January 27, 2012