Ready for some three-digit fun? This activity has thirty-six addition and subtraction problems, all using three-digit numbers! Grab your pencil and solve them all.

Will you need to carry or borrow? It depends! In addition, you need to carry 1 to the next place if the sum of the digits is more than 9. In subtraction, you need to borrow 1 from the next place if the top digit is smaller than the bottom one. Ready? Let's get started!