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.

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

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.

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

Find out how well you know your numbers under 100 in this simple place value worksheet!

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

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

This expanded form worksheet gets your child to break down numbers by ones and tens. This expanded form worksheet is an easy introduction to place value.

Learn to solve two-digit subtraction in no time with this helpful worksheet!

Base your knowledge of word form in base ten blocks with this fill-in-the-blank worksheet!

Work on your word form skills in this colorful, inviting worksheet!

How high can you count? First graders will strengthen their understanding of ones and tens with this hundreds chart. Students will fill in the missing numbers up to 120 and then answer questions using the chart.

Hop, skip, and jump through this skip counting maze for first and second graders!

Practice identifying number names with this hands-on worksheet for first graders! 

Hop backwards to subtract in this hands-on math worksheet!

Add some color to your math practice as you identify number names in this inviting worksheet!

Start your engines and rush toward the finish line in this engaging addition worksheet!

Jump into skip-counting practice with the help of this adorable worksheet!

Learn to subtract tens with a visual model in this first-grade worksheet!

Master subtracting from 10 with this helpful worksheet!

Use this visual model to practice adding 10 to two-digit numbers!

Cut and paste your way through numbers 1–5 in this hands-on worksheet!

Give your young math learner practice composing numbers 11–19 with this addition strategies worksheet!

Hone your two-digit subtraction skills with this colorful worksheet!