LEARN TO ADD AND SUBTRACT WITH RETENTION

Ages 6 and up

Adding and subtracting becomes easy and fun!

Learn to add and subtract with carryover, with a simple method to understand the step between units and tens. The 8 boards are dry-eraseable for practicing as many times as you like, and include a number line at the base to make calculations easier. The game contains two systems for performing carryover, compensation, and borrowing subtraction. It includes a table for working on doubles from 1 to 10 and the decomposition of the number 10.

Contains: 8 dry-erase boards made of sturdy cardboard (20.5 x 16.6 cm), 20 circular index cards made of sturdy cardboard (2.2 cm), 9 circular index cards made of sturdy cardboard (4 cm) and 8 erasable markers.

Guide to download: https://bit.ly/4c7tBRr