Number & Operations in Base Ten

2-Digit and 3-Digit Expanded Form Interactive Activity

Use this interactive activity with your students to practice expanded form through to the hundreds place.

Halloween Counting to 10 Worksheets – Kindergarten

Count, write, and match numbers and objects with printable Halloween counting worksheets.

Fire Safety Count and Match Activity - Clip Cards

Blend fire safety and mathematics with our printable Fire Safety Count and Match Activity Cards.

Hundreds Chart Fireman - Color Sheet

Print the perfect math activity for Fire Prevention Week with a printable hundreds chart fireman color sheet.

Halloween Math Worksheets - Spooky Ten Frames

Model numbers to twenty using ten frames with a spooky Halloween math worksheet for kindergarten.

Ordering Numbers Worksheets- Halloween Cut and Paste

Share these ordering numbers worksheets with your students for some spook-tacular Halloween fun!

Pumpkin Count and Color - Halloween Math Worksheet

Use these Halloween math worksheets to practice counting sets of objects up to ten.

Base-10 Blocks - Pictorial Model Cards

A set of base-10 block cards to compose and decompose numbers, including decimals.

Feed the Pumpkins - 1st Grade Subtraction Worksheet

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

Counting by 1s Picture Puzzles

Use this fun sorting activity for your students to practice ordering numbers in sequential order starting at a number other than 1.

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)

Making Tens Subtraction Worksheet

Find friendly numbers to subtract with a printable subtraction worksheet.

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.

Exploring 2-Digit Place Value - Teaching Slides

Explore 2-digit numbers using place value strategies with an interactive teaching presentation.

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.

Making Monsters Subtraction - Halloween Math Worksheet

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

Subtraction Stew - Halloween Math Worksheet

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

Number Talks - Making Ten Task Cards

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

Place Value Charts — Printable Math Mats

Practice place value concepts, addition, and subtraction with a printable set of free place value charts.

Tens and Ones 2-Digit Place Value Mat

Build two-digit numbers and improve place value skills with a printable tens and ones math mat.

Numbers to 100 - Printable Tens Frames

Print a colorful set of tens frames to enhance your small group math lessons.

Number Talks - Ten Frame Task Cards

Build number sense skills with this set of 30 ten and double ten frame math talk task cards.

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 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.

Ordering Numbers - Instructional Slide Deck

Help your students understand the concept of number sequencing with an interactive instructional slide deck.

Christmas Color By Number - Hundreds Chart Mystery Pictures

Print the perfect color-by-number math activity for Christmas: a set of 12 Christmas-inspired mystery hundreds charts.

2-Digit Place Value Game - Interactive Slide Deck

Review various first-grade place value concepts with an interactive place value warmup.

Two Step Word Problems on a Number Line - Place Value Activity

Differentiate place value concepts for 1st grade students with a pair of 2-Digit Number Line Task Card Sets.