For Addition - Place number of circles of one colour for the starting math problem. Then use the other colour to add the number of circles from the second number in the math problem. Count the total circles to find your answer.
For Subtraction - Choose any colour of circles and place the number from the beginning of the math problem. Then remove the number of circles indicated by the second number of the math problem. Count the total number of circles left to find your answer.
-------------------------- All of Snapdragon products are shipped ready to use. Each item is laminated, velcro is applied where needed and a dry erase marker is supplied for products that require one. Should you have any questions please use the Contact Me page to send me an email. I will reply back within 24 business hours.