Chiara Coetzee
Chiara Coetzee
Adding 123456789 to itself on abacus in left-to-right order - Step 16
I'm now adding 8 in the 8th position from the left. This is done in 3 steps: add 50, subtract 40, subtract 2. In this step I add 50 by adding 5 in the 7th 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 16
I'm now adding 8 in the 8th position from the left. This is done in 3 steps: add 50, subtract 40, subtract 2. In this step I add 50 by adding 5 in the 7th position from the left.
2,219
views
0
faves
0
comments
Uploaded on January 28, 2012
Taken on January 27, 2012