So simple in design... so easy to use...they must be magic! The simple format allows young children to work without adult supervision while they learn, memorise and self check the addition and subtraction facts for numbers 1-10.
The sum of the two bottom numbers equals the number at the top of the triangle.
7+3 = 10 3+7 =10
Start with the number at the top. Choose a number at the bottom to subtract. Cover the selected number. The answer will be the remaining bottom number.
10-7 = 3 10-3 = 7
Use a whiteboard marker to complete the revision exercise on the back of each laminated card. Combinations can be practiced repeatedly. Can be used in many ways... as a wall display for permanent reference, as activity cards for individual students or played as a game by small groups of children. Each number is colour coded for easy recognition.
There are 35 cards measuring 13.5cm x 13.5cm and are supplied in an attractive and practical storage container.