Learners use base ten diagrams to enhance their understanding of multiples of ten in this practice worksheet.

Use this check-in to assess your students’ abilities to count two-digit and three-digit numbers within 120.

How high can you count? Use this handy check-in to assess your second graders’ abilities to count by ones, tens, and hundreds within 1,000.

Can your little math whiz add up sums quickly in his head? Teach him to estimate before adding, a great skill to put to use in everyday life!

Understanding place value is fundamental to developing and mastering number sense skills. Use this assessment activity to evaluate how your first graders are coming along in their understanding of place value using tens and ones.

Become a number detective in this riddle-filled worksheet!

Invite first graders to dive into the world of two-digit numbers using place value models!

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

First graders explore two-digit numbers using place value models in this number sense 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.

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.

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

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

Boost learners' understanding of place value with this two-part practice worksheet!

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.