 ## MAFS.1.NBT.3.5: Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used.

There are 18 resources.
Title Description Thumbnail Image Curriculum Topics

## Math Worksheet Collection: The Language of Math Place Value, Addition Facts to 25, Addition Facts to 100, Numerical and Algebraic Expressions, Numerical Expressions, Variable Expressions, Fractions and Mixed Numbers, Subtraction Facts to 25 and Subtraction Facts to 100

## INSTRUCTIONAL RESOURCE: Tutorial: Interactive: Basic Addition and Subtraction Vocabulary, Part 2

INSTRUCTIONAL RESOURCE: Tutorial: Interactive: Basic Addition and Subtraction Vocabulary, Part 2

This interactive reviews key first and second grade vocabulary on addition and subtraction. Addition Expressions and Equations and Subtraction Expressions and Equations

## INSTRUCTIONAL RESOURCE: Tutorial: Using Place Value to Add Numbers to 20

INSTRUCTIONAL RESOURCE: Tutorial: Using Place Value to Add Numbers to 20

Learn how to use place value to add numbers. Sums to 20. Addition Expressions and Equations and Place Value

## INSTRUCTIONAL RESOURCE: Tutorial: Using Place Value to Subtract Numbers

INSTRUCTIONAL RESOURCE: Tutorial: Using Place Value to Subtract Numbers

Learn how to use place value to subtract numbers. Place Value and Subtraction Expressions and Equations

## INSTRUCTIONAL RESOURCE: Tutorial: Writing Numbers Based on Place Value

INSTRUCTIONAL RESOURCE: Tutorial: Writing Numbers Based on Place Value

Learn how to write a number based on a description of the place values of the digits. Place Value

## Interactive Math Game: Name That Place!

Interactive Math Game: Name That Place!

Identify the correct number based on the description of the place values of the digits. Numbers are to the hundreds place. Place Value

## Word Search Puzzle: Basic Addition and Subtraction Vocabulary 2

Word Search Puzzle: Basic Addition and Subtraction Vocabulary 2

Review key addition and subtraction vocabulary with this interactive word search puzzle. Addition Expressions and Equations and Subtraction Expressions and Equations

## Worksheet: Adding Tens, Worksheet 1

This is part of a collection of math worksheets on the topic of adding tens using place value. Place Value

## Worksheet: Adding Tens, Worksheet 2

This is part of a collection of math worksheets on the topic of adding tens using place value. Place Value

## Worksheet: Adding Tens, Worksheet 3

This is part of a collection of math worksheets on the topic of adding tens using place value. Place Value

## Worksheet: Adding Tens, Worksheet 4

This is part of a collection of math worksheets on the topic of adding tens using place value. Place Value

## Worksheet: Adding Tens, Worksheet 5

This is part of a collection of math worksheets on the topic of adding tens using place value. Place Value

## Worksheet: Subtracting Tens, Worksheet 1

Worksheet: Subtracting Tens, Worksheet 1

This is part of a collection of math worksheets on the topic of subtracting. Place Value

## Worksheet: Subtracting Tens, Worksheet 2

Worksheet: Subtracting Tens, Worksheet 2

This is part of a collection of math worksheets on the topic of subtracting. Place Value

## Worksheet: Subtracting Tens, Worksheet 3

Worksheet: Subtracting Tens, Worksheet 3

This is part of a collection of math worksheets on the topic of subtracting. Place Value

## Worksheet: Subtracting Tens, Worksheet 4

Worksheet: Subtracting Tens, Worksheet 4

This is part of a collection of math worksheets on the topic of subtracting. Place Value

## Worksheet: Subtracting Tens, Worksheet 5

Worksheet: Subtracting Tens, Worksheet 5

This is part of a collection of math worksheets on the topic of subtracting. Place Value

## Worksheet: Writing Numbers Based on Place Value

Worksheet: Writing Numbers Based on Place Value

Write the number based on the description of the place values of the digits. Place Value