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A review by votrikhon
The Grapes Of Math: Mind Stretching Math Riddles by Greg Tang
2.0
REGROUP - ADDITION
This book shows lots of group with different number. We have to regroup them to make the same number to add( like a group of ten).
This book shows lots of group with different number. We have to regroup them to make the same number to add( like a group of ten).