20-Tray: Complete With Blocks

20-Tray: Complete With Blocks

Warning!

Choking Hazard

Small parts. Not for children under 3 years.
Product Code: 7077B
Availability: In Stock
Price: $75.00
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The 20-Tray demystifies the difficult teen numbers by demonstrating that the sequence and concepts they have internalized regarding numbers 1 to 10 extend to higher numbers, as well. Children discover that the numbers 11-20 are made of ten and some ones, and that the combinations of ten apply to make combinations making twenty e.g. (4+6=10, so 14+6=20).