Learn addition facts to twenty with this durable "pop and learn" addition board. Addends one to ten are represented on both the vertical and horizontal axes with the correct sum presented in the corresponding bubble. Pop bubbles as you practice and solve the equation. Bubbles on the reserve side are blank and can be used for creating visual addition examples. Learn addition, addends, sums and basic facts. Interactive bubble board with 100 pop bubbles. Includes addition patterns on the front side and blank bubbles on the reverse. Engaging for all children. For ages 6+. Age: 6 years/Grade 1