This activity is adapted from the NSW Department of Education Targeting Early Numeracy activities.
How to use:
The teacher decides on an operation to be the focus.
Players split the cards between them and place in their card pile. At the same time each player turns over their 2 cards solves the sum. The player with the highest total wins the round and collects a crown. The player with the most crowns at the end is the winner.
To extend (older grades)
Same as above. However instead of teacher selected operation, the operation cards are placed in the middle and the students randomly pick one.