 ## MAFS.2.NBT.2.9: Explain why addition and subtraction strategies work, using place value and the properties of operations.

There are 50 resources.
Title Description Thumbnail Image Curriculum Topics

## Math Worksheet Collection: Counting Counting, Addition Facts to 100, Add 3-Digit Numbers and Subtract 3-Digit Numbers

## Math Worksheet Collection: Subtracting With Place Value Subtract 3-Digit Numbers

## Math Definitions Collection: Elementary Math Terms for Addition and Subtraction Addition Expressions and Equations

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Associative Property

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Borrowing

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Carry Over

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Commutative Property

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Difference

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Equals Sign

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Even Number

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Fact Family

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--False Equation

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Hundreds Place

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Minus Sign

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Odd Number

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Ones Place

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Place Value

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Plus Sign

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Regrouping

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Subtracting

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Subtraction

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations

## Elementary Math Definitions--Addition Subtraction Concepts--Subtraction Expression

### This is part of a collection of terms and definitions related to addition and subtraction, ideal for use in an early elementary classroom. Addition Expressions and Equations