Cool Math
Coolmath: Coolmath4kids: Adding Numbers Within 1000
Step-by-step tutorial showing how to add 3-digit numbers in place value columns with and without regrouping. CCSS.Math.Content.3.NBT.A.2 Fluently add and subtract within 1000
Khan Academy
Khan Academy: Addition Within 100
In this exercise, students practice addition within 100. Students receive immediate feedback and have the opportunity to watch a tutorial video get hints, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...
Khan Academy
Khan Academy: Addition Within 1000
In this exercise, students practice addition within 1000. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...
Khan Academy
Khan Academy: Addition Using Groups of 10 and 100
In this exercise, students practice addition using groups of 10 and 100. Students receive immediate feedback and have the opportunity to get hints, watch a video tutorial, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2...
Khan Academy
Khan Academy: Subtraction Within 100
In this exercise, students practice subtraction within 100. Students receive immediate feedback and have the opportunity to watch a video tutorial, get hints, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...
Khan Academy
Khan Academy: Subtraction Within 1000
In this exercise, students practice subtraction within 1000. Students receive immediate feedback and have the opportunity to get hints, watch video tutorials, and try questions repeatedly. CCSS.Math.Content.3.NBT.A.2 Fluently add and...
Khan Academy
Khan Academy: Add Within 100
Practice adding two-digit numbers. All numbers in these problems are 100 or less. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Multi Digit Subtraction
Subtract whole numbers that are less than or equal to 1,000,000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Goodwill
Gcf Global: Addition and Subtraction
Learn the basics of addition and subtraction, then practice what you've learned using the interactives.
Common Core Sheets
Common Core Sheets: Number and Operations in Base Ten 5.nbt.3b Worksheets
Print or create worksheets or flashcards to assess students' understanding of place value, comparing numbers, and ordering numbers with decimals.
Alabama Learning Exchange
Alex: Three Digit Subtraction
This lesson uses technology and literature to teach subtraction of three-digit numbers, including subtraction across zeros.
Alabama Learning Exchange
Alex: Explorations in Place Value
Explorations in Place Value is an interactive math mini-unit that incorporates the use of children's literature, mathematical learning stations, and small group instructional strategies to reinforce basic principles of place value and to...
ABCya
Ab Cya: Base Ten Blocks
ABCya! Base Ten Blocks virtual manipulatives is to help students learn mathematical concepts including addition, subtraction, number sense, place value and counting.
Topmarks Online
Topmarks: Daily 10
Daily 10 has maths questions on a range of maths concepts: addition, subtraction, ordering, partitioning, digit values, rounding, multiplication, division, doubles, halves and fractions. Great starter or plenary activity. Useful for...
Cool Math
Coolmath: Order of Operations More on Mdas
Students will learn from these notes that will challenge their application of the order of operations. Multiplication, division, addition, and subtraction are featured in these notes.
Better Lesson
Better Lesson: More Meat!
Third graders practice skills of addition, subtraction, word problems and graphing and develop their own theories about why meat consumption is so different across the world.
Better Lesson
Better Lesson: Subtraction With Perimeter & Shapes
Subtraction problems can involve shapes, attributes and perimeter.
Quia
Ixl Learning: Place Value
Brush up on your math skills relating to place value then try some practice problems to test your understanding.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Place Value and Problem Solving With Units of Measure
A guide to support parents as they work with their students in place value and problem solving with units of measure.
PBS
Pbs: Rounding to Wholes, Tenths, and Hundredths
On some nights only certain numbers can get in to the Number Line Party, what's a decimal to do? This interactive exercise combines activities here appear in two other Number-Line Party lessons and focuses on using what you know about...
PBS
Pbs: Place Value: Musical Digits
Learn about place value and the base-10 number system. This video focuses on using what you know about place value to determine what value each of the three digits represents.
PBS
Pbs: Base 60: Babylonian Decimals
Explore a brief history of mathematics in Mesopotamia through the Babylonian Base 60 number system. This video focuses on how a base 60 system does not use fractions or repeating decimals, some of the advantages of a base 60 system, and...
PBS
Pbs Learning Media: Pbs Kids: Odd Squad: Collection
Welcome to Odd Squad: the zaniest, craziest team of kid investigators around! Explore content below targeted at making elementary-level math a fun, imaginative experience, mixing concepts like arithmetic and geometry with fantastical...
E-learning for Kids
E Learning for Kids: Math: Sheep Farm: 3 Digit Numbers
Help Jack on his sheep farm and learn more about 3-digit numbers.