Kids count and color in this one-to-one correspondence worksheet.

Give students practice solving and graphing one-step inequalities with this one-page algebra worksheet!

Practice solving one-step addition and subtraction equations with this one-page algebra worksheet!

Children will enjoy counting (and perhaps eating!) the rainbow with this fun one-to-one correspondence practice worksheet.

Kids completing this third grade math worksheet multiply by 1 to solve each equation and also fill in a multiplication chart for the number 1.

Identify numbers that are one less than another number with this kindergarten worksheet!

In this fall-themed worksheet version of the popular game two truths and one lie, learners will solve three equations and determine which two equations are true and which one is false.

Practice adding one to numbers within 10 with this first-grade addition worksheet!

Travel through the hundreds chart on a quest to one.

One more vegetable! This worksheet will have your students figuring out what happens when you add one more vegetable to the existing list.

In this worksheet, students will identify, count, and order numbers from 1-10 in order to gain a better understanding of one-to-one correspondence between numbers and pictures.

Use this glossary with the EL Support Lesson: One Less.

This discussion guide helps readers reflect on chapters 1–38 of The One and Only Ivan.

Ask your kindergartener to complete these one-digit subtraction facts, and they'll go above and beyond kindergarten standards in no time!

Students solve and graph one-step inequalities with this one-page algebra worksheet!

Practice solving one-variable, one-step equations with this engaging math puzzle worksheet!

Translate scenarios to one-step equations with this story-stacked worksheet! 

Give your first grader's math skills a boost with this delightful worksheet that asks them to complete a collection of one-digit addition problems.

Kids count the number of buttons on each shirt and draw lines from the number 1 to the shirts that have one button on this prekindergarten math worksheet.

Help kids grasp the concept of subtraction by taking one away in this worksheet.

Learn the number 1 with this early math worksheet!

Give students extra practice solving and graphing one-step inequalities with this one-page algebra worksheet!

Children practice their one-digit multiplication facts with this fall-themed math worksheet.

Give students hands-on practice solving one-step multiplication and division equations with this sixth-grade algebra worksheet!

Find the answers to 16 one- and two-digit division problems in this playful holiday worksheet!

Children practice their one- and two-digit division facts with this fall-themed math worksheet.

Which one is longer? Practice quantifying things in measurements using this beginner's worksheet!