Addition & Subtraction Magic Triangle

Magic Triangles are a great resource for early learners to practise addition and subtraction for numbers 1 to 10. Self-checking, wipe-clean and easy to use, kids can work through the cards with little to no supervision required. Simply cover a corner with your hand and either add or subtract the numbers on the other two corners. The answer will always be underneath your hand!
 
Features:
35 Double-Sided Cards
Dry Erase Marker