Kidea Math Practice Print - Subtraction

Kidea math problem stamp for practising subtraction. These unique roller stamps let you create up to 100 different combinations of math operations - simply change the number setting with the knob. With these stamps, it is easy to add a game element to math problems and to vary the way they are set. It is also a creative teaching aid for parents and teachers, who can leave the invention of new combinations of math operations to the small device.

The math stamp is ideal for reviewing material before a test or quiz. And when the ink runs out, it can easily be refilled with new ink.

Dimensions: 15 x 12 x 3 cm