Start game!
Memory game – match addition sums to the answers

Start game!
Memory game – match subtraction sums to the answers

Start game!
Memory game – match subtraction or addition sums to the answers

Start game!
Memory game – two addition sums have the same answer

Start game!
Memory game – two subtraction sums have the same answer

Start game!
Memory game – addition and subtractions sums have the same answer