# CCSS.MATH.CONTENT.2.NBT.B.8

Mentally add 10 or 100 to a given number 100-900, and mentally subtract 10 or 100 from a given number 100-900.

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### Number of the Day Worksheet

Explore 4, 5, and 6-digit numbers using this number of the day worksheet with your students.

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### 100 More and Less Worksheets - Cut and Paste

Use an understanding of place value to determine a number 100 more or less than a number with a pair of cut-and-paste math worksheets.

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### 10 More, 10 Less, 100 More, 100 Less — I Have, Who Has Game

Find the number ten more than, ten less than, one hundred more than, and one hundred less than the given number in this fun whole-class game!

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### Math Graphic Organizers - Printable Work Mats

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

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### Number Patterns: More or Less – Puzzle Match-Up

Use your understanding of place value and skip counting to determine 10 or 100 more or less than a 3-digit number with this set of puzzles.

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### Cowboy Clip Cards – 10 More, 10 Less/100 More, 100 Less

Use an understanding of place value to determine a number 10 or 100 more or less than a number with this set of clip cards.

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### Number Patterns – More and Less Worksheets

Use place value skills to mentally add and subtract 10 or 100 to a given number with this set of worksheets.

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### Ten More, Ten Less Within 999 - Cut and Paste Worksheet

Practice adding and subtracting 10 from a given 3-digit number in this cut-and-paste worksheet.

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### Mental Math Addition Posters

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

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### Roll and Color Worksheet for Ten More, Ten Less

Use this interactive worksheet to help students practice finding the number that is 10 more and 10 less than a given number.

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### 100 More , 100 Less Matching Game (Three-Digit Numbers)

Match 3-digit number cards to find pairs that are 100 more or 100 less of each other.

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### Ten More, Ten Less Match-Up - Two-Digit Numbers

Identify ten more or ten less of a given 2-digit number with this set of 36 match up cards

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### Ten More, Ten Less Match-Up - Three-Digit Numbers

Identify ten more or ten less of a given 3-digit number with this set of 36 match up cards.

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### Ten More, Ten Less Worksheet

Practice or review adding and subtracting 10 from a given number.

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### More or Less Worksheet

Practice adding and subtracting 10 and 100 to a three-digit number.

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### Number Talks - Place Value Task Cards

Build number sense skills with this set of 24 task cards.

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### Ten More, Ten Less Task Cards

Practice identifying 10 more and 10 less than a given number with our set of 24 task cards.

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### Ten More, Ten Less Dominoes

Practice adding ten more or subtracting ten from a particular number with a set of 27 dominoes.

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### Place Value Work Mat

Practice place value concepts with this work mat for students.

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### Grade 2 Daily Warm-Up – PowerPoint 2

A 73-slide PowerPoint presentation containing a variety of quick warm-up activities.

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### What's Missing? - 100 More, 100 Less Task Cards

Find numbers 100 more or 100 less than a given number up to 4 digits with this set of 20 task cards.

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### 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.

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### Dot-to-Dot Drawing - Counting by 10 - Shark

A dot-to-dot worksheet to practice counting by 10’s to 580.

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### Number Grid Game

A number grid game to practice determining a number that is 1 more, 1 less, 10 more, and 10 less than a given number.

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### Number Charts and Number Finder

A number chart and number finder template to use when learning to identify numbers that are 1 more, 1 less, 10 more, and 10 less than a given number.

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### Dot-to-Dot Drawing - Counting by 10 - Horse

A dot-to-dot worksheet to practice counting by 10’s to 620.

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### Race to 10,000 - Number Pattern Game

A fun game for students to play to practice place value and mentally adding multiples of 10, 100, and 1,000.

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### Black and White Number Board - 1-120

A black and white number board with numbers 1-120 that can be used for a variety of activities.

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### Black and White Number Chart 1–120

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

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### Number Talks Teaching Resource Pack - Grade 2

A collection of number talks teaching resources that support meaningful and highly engaging conversations in the mathematics classroom.