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- Sat Mar 03, 2012 6:04 pm
- Forum: Main Board
- Topic: Math Idea
- Replies: 0
- Views: 2624
Math Idea
I like to use a simple 100 bead abacus with my son in math to show addition and subtraction with regrouping. We've labeled one row of colored beads "hundreds", another row of a different color "tens", and a third row of yet a different color "ones". It's a very easy to use visual manipulative. We ha...