Use place value understanding and properties of operations to add and subtract

Addition and Subtraction Within 20 – Worksheet

Use this worksheet with your students when exploring addition and subtraction within 20.

Black and White Number Chart 1–120

A black and white number chart showing the numbers 1-120.

Addition to 20 Activity - Winter Math Puzzle for 1st Grade

Practice addition facts up to 20 with a printable winter math puzzle for kindergarten and first-grade students.

Number Talks - Making Ten Task Cards

Build number sense skills with this set of 20 task cards.

Place Value Work Mat

Practice place value concepts with this work mat for students.

Printable Ten Frames (Single and Double)

Introduce these printable ten frames to your students to promote number sense with hands-on learning.

Addition Strategies Cheat Sheet

Help students understand the different addition strategies with this helpful cheat sheet.

Making Monsters Subtraction - Halloween Math Worksheet

Have some spooky subtraction fun with three differentiated Halloween subtraction worksheets.

Math Graphic Organizers - Printable Work Mats

Practice working on specific math concepts with our set of 5 printable math graphic organizers.

Addition Match-Up Puzzles

A set of 15 match-up cards to scaffold work with addition word problems.

What's Missing? - Ten More, Ten Less Task Cards

Find numbers ten more or ten less than a given two- or three-digit number with this set of 20 task cards.

Number Pattern Worksheets for Grade 1

Share our number pattern worksheets for grade 1 with your students to introduce them to early concepts of algebra.

Number Grid Game — Interactive Activity

Share this number grid game with your students to give them practice adding and subtracting ten and one from a given number.

Ten Frame Printable Templates

Use these printable ten frames in various math lessons to reinforce number sense and other essential skills.

Feed the Pumpkins - 1st Grade Subtraction Worksheet

Feed the pumpkins and practice subtraction to twenty with a Halloween subtraction worksheet.

Adding with Strip Diagram Cut and Paste Worksheet

Practice adding two digit numbers using the strip diagram with this cut and paste worksheet.

10 More, 10 Less - Differentiated Mazes

Delight your students with this maze challenge, to practice calculating 10 more or 10 less than a value within 120.

10 More, 10 Less Coloring Worksheets (Differentiated)

10 More 10 Less Sorting Card Game

Engage your students and have them practice reading statements about values 10 more or 10 less, then and determining if the statement is accurate.

Ten More, Ten Less Within 100 - Cut and Paste Worksheet

Practice adding and subtracting 10 from given numbers within 100 in this cut-and-paste worksheet.

Subtraction Stew - Halloween Math Worksheet

Have some spooky subtraction fun with a Halloween picture-model subtraction worksheet.

Numbers to 30 - Tens Frames - Printable

Use a printable ten frame when working on counting, addition and subtraction, odd and even numbers, or place value.

Addition and Subtraction Work Mat

Practice addition and subtraction concepts daily with a printable work mat for students.

Subtraction Strategies - Ten Frame Printable Bingo Game

Practice using ten frames to subtract single-digit numbers in a whole class bingo game.

Subtraction with Ten Frames - Worksheet

Model and subtract numbers to twenty using ten frames with a handy ten-frame subtraction worksheet.

Subtraction within 20 - Color by Number Worksheet

Reveal the mystery picture by solving the subtraction problems with a color-by-number worksheet.

Subtraction Using Picture Models Worksheet

Practice subtracting numbers to 12 using picture models with a printable subtraction worksheet.

Easter Literacy and Math Centers - Digital Learning Activity

Lost the lesson-planning stress this Easter season with an exciting no-prep digital Easter Literacy and Math center.

Mental Math Addition Posters

Use this set of addition posters in your classroom when teaching different mental math strategies.

Fall Math Worksheets - Addition to 99

Celebrate the coming of Fall and practice adding 2-digit numbers up to 99 with a set of four Fall color-by-number worksheets.

Adding to Multiples of Ten up to 100 – Halloween Mystery Picture

Celebrate the coming of Halloween and practice adding 2-digit numbers up to 99 with a set of addition color by number worksheets.

The Addition Quest – Whole Class Activity

Find the hidden gems and place their numbers into the correct positions on the worksheet to solve each addition problem.