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

Boost your first grader's number sense with a lesson in place value up to the tens place.

Practice finding the names of six-digit numbers with this inviting worksheet!

On this third grade math worksheet, kids round to estimate the difference between two numbers, a useful strategy for checking the results of calculations.

Identify the names of numbers in the tens of thousands in this colorful worksheet!

On this third grade math worksheet, kids round to estimate the sum of two numbers, a useful strategy for checking the results of calculations.