 ## NY-1.NBT.4: Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

There are 314 resources.
Description Thumbnail Image Curriculum Topics Description

## Math Worksheet Collection: Adding Two-Digit Numbers Add 2-Digit Numbers This collection aggregates all the math worksheets around the topic of Adding Two-Digit Numbers. There are a total of 65 worksheets.

## Math Worksheet Collection: Sums to 20

### Overview Addition Facts to 25 This collection aggregates all the math worksheets around the topic of Sums to 20. There are a total of 40 worksheets.

## Math Definitions Collection: Place Value Place Value and Rounding This collection aggregates all the definition image cards around the topic of Place Value vocabulary. There are a total of 48 terms.

## Math Games Collection: Jeopardy Addition Facts to 25, Addition Facts to 100, Subtraction Facts to 100, Add and Subtract Fractions, Graphs of Linear Functions, Slope-Intercept Form, Graphs of Quadratic Functions and Numerical and Algebraic Expressions Overview
This is a collection of all our Jeopardy math games. There are a total of 7 games.

## Math Examples Collection: Arithmetic: Addition and Subtraction Addition Facts to 25, Subtraction Facts to 25, Addition Expressions and Equations, Numerical Expressions, Add Multiple-Digit Numbers, Counting, Addition Facts to 10 and Subtraction Facts to 10 This collection aggregates all the math examples around the topic of Arithmetic: Addition and Subtraction. There are a total of 166 images. This collection of resources is made up of downloadable PNG files that you can easily incorporate into a presentation.

## Math Game Collection: Place Value

### Overview Th Place Value and Counting This is a collection of games that focus on place value topics.

## Math Examples Collection: Adding Two One-Digit Numbers (No Regrouping)

### < Addition Facts to 10 This collection aggregates all the math examples around the topic of Adding Two One-Digit Numbers (No Regrouping). There are a total of 33 images.

## Math Examples Collection: Two-Digit Sums (No Regrouping)

### < Addition Facts to 25 This collection aggregates all the math examples around the topic of Two-Digit Sums (No Regrouping). There are a total of 37 images.

## Math Examples Collection: Two-Digit Sums (With Regrouping) Addition Facts to 25 This collection aggregates all the math examples around the topic of Two-Digit Sums (With Regrouping). There are a total of 34 images.

## Math Clip Art Collection: Using Place Value to Add Numbers to 10 Addition Facts to 10 and Place Value This collection aggregates all the math clip art around the topic of Using Place Value to Add Numbers to 10. There are a total of 14 images.

## Math Clip Art Collection: Using Place Value to Add Numbers to 20 Addition Facts to 10, Addition Facts to 25 and Place Value This collection aggregates all the math clip art around the topic of Using Place Value to Add Numbers to 20. There are a total of 23 images.

## Collections in a Box: Place Value

### This cheat sheet gathers together a number of resources on the topic of place value. See the descriptions and links below. Each link takes you to a collection of resources around that topic. The middle column indicates the number of resources available and the third column takes you to page on Media4Math where those resources can be found. Add and Subtract Decimals, Compare and Order Decimals, Multiply Decimals and Place Value

## Definition--Place Value Concepts--Adding Using Place Value

### Definition--Place Value Concepts--Adding Using Place Value This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Base Ten Blocks

### Definition--Place Value Concepts--Base Ten Blocks This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Base Ten Number System

### Definition--Place Value Concepts--Base Ten Number System This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Billions Place

### Definition--Place Value Concepts--Billions Place This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Comparing Numbers Using Place Value

### Definition--Place Value Concepts--Comparing Numbers Using Place Value This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Decimal Number

### Definition--Place Value Concepts--Decimal Number This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Decimal Point

### Definition--Place Value Concepts--Decimal Point This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Decimal Square

### Definition--Place Value Concepts--Decimal Square This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Digit

### Definition--Place Value Concepts--Digit This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Dividing Using Place Value

### Definition--Place Value Concepts--Dividing Using Place Value This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Expanded Form

### Definition--Place Value Concepts--Expanded Form This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Expanded Notation

### Definition--Place Value Concepts--Expanded Notation This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value

## Definition--Place Value Concepts--Expanded Notation with Powers of 10

### Definition--Place Value Concepts--Expanded Notation with Powers of 10 This is part of a collection of definitions on the topic of place value. Each definition includes an example of the term. Place Value