A Number Bond Tray helps children visually see how a whole number is broken down into parts. You can use written numbers or quantities of objects to work on addition and subtraction.
You can combine by adding small number coins without pegs and added in with small wooden balls.
You may use ten frame or 20 frame to display the option of the number coins.
Crafted from solid maple hardwood and sealed with a durable lacquer finish. Dimenssion: approx. 22.2cm x 21cm