Your kid is bound to have a blast solving these number sequencing riddles.

For each two-digit number on this first grade math worksheet, kids determine the place value of each digit, then write each digit in the tens or ones column.

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

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