Review three-digit addition and subtraction by solving these dino-riffic word problems.

Children stretch their regrouping skills as they solve three-digit subtraction word problems.

Kids solve addition problems with three-digit addends to move from bubble to bubble on this second grade math worksheet.

With the concept of base 10, it's easy to understand place values. Help your child learn that each digit is ten times the value of the one to its right.

Explore two-digit numbers using place value models with this first-grade number sense worksheet!