With this sommin domino you can practice plus and/or minus exercises up to 20 in a playful way. The domino contains 60 cards, 30 of which are blue with addition exercises and 30 red with subtraction exercises.
Add 30 blue assignment cards -(size 10.7 x 4.2 cm)
30 Red Command Cards - Subtract (afm. 10,7 x 4,2 cm)