- AMI approved
- Unequalled beauty
- Precise control of error
- Exact isolation of one quality
- Perfect interrelations
-20%summer discount - use coupon SUMMER22 during checkout.
The Addition Working Charts aid the child in the practice and memorization of the unit addition combinations. Includes 2 control charts, 4 working charts and 1 box of wooden answer chips.
|Minimum age||5 years|
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