Challenge your students to reorder the digits in two-digit numbers to create the biggest and smallest numbers possible.

Children practice writing numbers from expanded forms and expanded forms from numbers.

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.

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

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!

Practice place value with hundreds, tens, and ones blocks!

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

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

Reveal a playful picnic by completing this first- and second-grade place value puzzle!

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