<ul><li>One Teens Board, showing the numerals \'10\' through \'19\'. Two boxes consists of lids and numeral 10 printed on nine of the number slots, and 9 wooden tablets where the numerals 1-9 printed on them.</li><li>Two Tens Board, showing the numerals \'10\' through \'99\'. Two boxes consists of lids and numeral 10-40 printed on one box and 50-90 printed on the second box. The boxes consists of nine movable wooden tablets numbered 1-9.</li><li>Used in math activities to help kids understanding the Addition and Subtraction, also other mathematic skill.</li></ul><br><br>It is made of high-quality wood, good workmanship, moisture and abrasion resistance, smooth and burr-free.

Adena Montessori Ten and Teen Boards Wood Math Number Board