Create a mini guide that can serve as a useful reference when completing the activities in the workbook "Hooray for Arrays" and others.

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.

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

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.

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

Learn the number 1 with this early math worksheet!

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

This fun fraction worksheet introduces kids to the fraction 1/3.

Use these vocabulary cards with the EL Support Lesson: One Less.

Give learners targeted practice performing mixed operations with positive decimals in this one-page practice worksheet! 

Learners will practice dividing two-digit numbers by one-digit numbers in this division without remainders worksheet.

Practice one- and two-digit division facts with this 20-problem worksheet!

Children practice their one-digit multiplication skills with this Thanksgiving math worksheet.

Help your kid understand what one-fourth means with this introduction to fractions.

Practice your fractions with a fun, visual activity! Your first grader will get to practice his fraction 1/3 by looking for shapes that are one third shaded.

Kindergarten students are excited to practice their addition skills. As they grow to become better mathematicians, use this fun worksheet to help them understand what happens when you add one more.

Practice multiplication facts for numbers 1-10 in this Halloween-themed worksheet!

Children practice conceptualizing multiples of 100 using a visual reference with this two-part worksheet.

This first grade math worksheet will help your child master the fraction 1/2. Your child will circle the number of items that equals one half.