Math box cards up to 10

Assignment cards for the Math box magnetic. Choose an assignment card. The cards are numbered and have an increasing degree of difficulty. Place the chosen card in the Math box and for each sum lay a block with the outcome next to the card. Check your answers by turning the card. Well done? Move on to the next door.

Contents:
red plastic box (19.5 x 8 x 4 cm)
20 plastic assignment cards with self- check