E-learning for Kids
E Learning for Kids: Math: Igloo: Addition
It takes a lot of math to build an Igloo. Can you help Kirima? Students will learn to select and apply appropriate mental, written or calculator strategies to solve addition problems.
Primary Resources
Primary Resources: Addition and Subtraction Higher Numbers
An extensive selection of teacher resources to aide in teaching and reviewing addition and subtraction of two and three digit numbers, inverse operations, counting on, and other mental strategies for addition and subtraction. Resources...
Other
Saskatoon Public Schools: Mental Math Strategies
Strategies for basic addition and multiplication are explained here and there are several practice worksheets that can be downloaded.
E-learning for Kids
E Learning for Kids: Math: Husky Sled: Addition to 20
Kodi the sled dog needs your help. Can you help him count?
Government of Alberta
Learn Alberta: Math Interactives: Exploring Square Roots (Object Interactive)
Explore a set of perfect squares, as well as their square roots using this highly interactive math resource. In addition, students will get to look at estimates of the square roots of non-perfect squares. Printable activities, solutions,...
Illustrative Mathematics
Illustrative Mathematics: Building Toward Fluency
The purpose of this task is to promote certain addition strategies that will help students learn to fluently add and subtract within 20. Students will use a number line or magnetic cubes to solve addition problems. Students will be asked...
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...
E-learning for Kids
E Learning for Kids: Math: Hamburger Restaurant: Addition and Subtraction
On this interactive site students practice addition and subtraction skills. At the end of the lesson students will be able to solve addition problems using a formal written algorithm and use various strategies to solve unfamiliar problems.
Khan Academy
Khan Academy: Break Apart 3 Digit Addition Problems
Practice breaking apart big addition problems using place value. For example, 234+567 is the same as 200+500+30+60+4+7. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive...
Khan Academy
Khan Academy: Select Strategies for Adding Within 100
Practice telling which strategies work for adding two numbers within 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide Addition, Subtraction Within 1000 With Word Problems to 100
A guide to support parents as they work with their students in addition and subtraction within 1000 with word problems to 100.
Cool Math
Coolmath: Coolmath4kids: Scratch Addition
Demonstrates a method for easily adding long vertical columns of numbers. Includes two sample problems to try.
Math Cats
Math Cat: Fact Family Card
Everything you need to know about fact families can be found here. Discover what fact families are and learn different strategies for using them. Links included to print your own fact family cards, create a fact family house, and play a...
Queen's Printer for Ontario
E workshop.on.ca: Effective Instr'n in Math, K 6: Multidigit Computation [Pdf]
Volume 5 in an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for teach basic facts and multidigit computation to students in kindergarten through grade 6.
Math Playground
Math Playground: Thinking Blocks
This lesson teaches students how to use colored blocks to model word problems. There are several sets of problems each for addition / subtraction, multiplication / division, and ratio word problems.
Other
Nearpod: Addition & Subtraction Strategies
In this lesson, students will relate counting to addition and subtraction and will learn several strategies for solving addition and subtraction problems.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Multiplication Strategy: Partial Products 2 [Pdf]
Break down numbers as a strategy to multiply one-digit by three-digit numbers and two-digit by two-digit numbers.
E-learning for Kids
E Learning for Kids: Math: Bbq Party: Counting Forwards & Backwards
Explore counting and number patterns with Lily as she throws a BBQ party.
AAA Math
Aaa Math: Adding Two Digit Numbers Mentally
Read these two strategies for adding two-digit numbers in your head. Then try out the one you like better by playing the game. Running totals of your correct and incorrect answers as well as a percent score of your correct answers will...
History is Fun
Jan Brett: Addition Facts Flashcards for 11 Pdf [Pdf]
Print out these colorfully illustrated PDF file pages to practice your addition facts when adding an eleven. Fold them in half and one side shows the problem while the other side shows the problem with the correct answer. Put them in a...
Queen's Printer for Ontario
E workshop.on.ca: Number Sense and Numeration, Grds 4 6: Addition, Subtract [Pdf]
Volume 2 of an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for teaching addition and subtraction to students in grades 4 through 6. Include a series of suggested activities.
Other
Welcome to mr.r's World of Math!!!
At this site, math word problems are presented in an exciting and creative format. Students attempt to find solutions to hilarious situations using their mathematical skills. To do this they must solve various math problems in a certain...
Khan Academy
Khan Academy: Estimate to Add and Subtract Multi Digit Whole Numbers
Use estimation to find a reasonable solution to multi-digit addition and subtraction problems. Numbers are less than or equal to 1000. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
Other
Nearpod: Adding Within 100
In this instructional activity on addition within 100, students will learn how to compose numbers and will explore strategies to add double-digit numbers such as vertical addition, regrouping, using multiples of 10, and labeling an open...