Common Core State Standards

# CCSS.MATH.CONTENT.1.NBT.C.5

Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

22 teaching resources for those 'aha' moments

### 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.

7 pages Grades: 1 - 2

### 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

13 pages Grades: 1 - 2

### Ten More, Ten Less Worksheet

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

4 pages Grades: 1 - 2

### 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.

3 pages Grades: K - 1

### Ten More, Ten Less Task Cards

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

8 pages Grades: 1 - 2

### Ten More, Ten Less Dominoes

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

6 pages Grades: 1 - 2

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

An interactive worksheet to practice finding the number that is 10 more and 10 less than a given number.

2 pages Grades: 1 - 2

### Place Value Work Mat

A work mat for students to use when working on place value concepts.

1 page Grades: 1 - 5

### Number Talks - Target Number Task Cards

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

10 pages Grades: PK - 2

### Black and White Number Chart 1–120

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

1 page Grades: K - 3

### Math Work Mats

A set of 5 work mats for students to use when working on specific math concepts.

5 pages Grades: 1 - 5

### 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.

1 page Grades: K - 2
• #### teaching resource

9 posters outlining mental math strategies for addition.

9 pages Grades: 1 - 5

### 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.

22 pages Grades: 1 - 2

### 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.

22 pages Grades: 1 - 2

### Number of the Day Worksheet

A number of the day worksheet with a variety of tasks to practice number sense skills.

1 page Grades: 1 - 3

### Numbers 1 to 100 - Odds, Evens and Counting in 5's

Numbers 1 to 100 displayed on a bright and colorful poster.

1 page Grades: K - 3

### Numbers 1 to 100 - Odds, Evens and Counting in 5's - Space

Numbers 1 to 100 displayed on a bright and colorful poster.

1 page Grades: K - 3

### Numbers 1 to 100 - Rainforest

Numbers 1 to 100 displayed on a bright and colorful poster.

1 page Grades: K - 2

### Numbers 1 to 100 - Odds, Evens, and Counting in 5's - Rainforest

Numbers 1 to 100 displayed on a bright and colorful poster.

1 page Grades: K - 3

### Numbers 1 to 100 - Trees

Numbers 1 to 100 displayed on a bright and colorful poster.

1 page Grades: K - 2

### Number Talks Teaching Resource Pack - Grade 1

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