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Saturday, November 13, 2010
Old abacus
2 comments:
Anonymous
said...
About 32 years ago, I learned to do addition, subtraction, multiplication and short division on an abacus like this (though mine was plastic, not wooden). It has come in so handy in later life! Not.
2 comments:
About 32 years ago, I learned to do addition, subtraction, multiplication and short division on an abacus like this (though mine was plastic, not wooden). It has come in so handy in later life! Not.
We were taught to add and subtract. I thought it was interesting.
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