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CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Numbers Up to 20 Word Problems
[Free Registration/Login may be required to access all resource tools.] The video describes how to solve word problems where they have to add or subtract 3 or more numbers.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Three or More Numbers
[Free Registration/Login may be required to access all resource tools.] This is a set of practice problems where students are given word problems where they have to add or subtract 3 or more 1-digit numbers.
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting With Parentheses
[Free Registration/Login may be required to access all resource tools.] The resource includes a video tutorial on how to find a missing number in a multi-operational problem by working backwards. The video is followed by practice...
Math Is Fun
Math Is Fun: Mathopolis: Fractions
Ten interactive questions on adding and subtracting fractions. Each question is supported by a detailed explanation of the solution.
Texas Instruments
Texas Instruments: Amazing Appetites
In this activity, students learn to count and solve original word problems. They learn to add by combining sets and subtract when removing the set. They use manipulatives to reflect the reasoning used in problem solving.
Khan Academy
Khan Academy: Adding & Subtracting Matrices
Learn how to find the result of matrix addition and subtraction operations.
Math Slice
Basic Math: Subtraction
This resource covers basic addition where students can choose a range of numbers including negatives or even decimals. After selecting parameters students are timed completing ten problems with instant feedback and an opportunity to...
Ducksters
Ducksters: Kid's Games: Fast Math in Outer Space Game
Test your math skills and speed with this fun space battle game. You will have to do more than just shoot straight, you will have to add, subtract, divide, and multiply quickly to win this battle.
Wyzant
Wyzant: Order of Operations Worksheet
At this site from WyzAnt, students can practice their use of Please Excuse My Dear Aunt Sally with these ten questions before revealing the step-by-step work and checking their answers. Knowledge of the FOIL Method and the rules of...
Khan Academy
Khan Academy: Adding & Subtracting Negative Fractions
Practice adding and subtracting positive and negative fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Make 10
In this exercise, students practice making ten. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Adding Two Digit Numbers (No Regrouping)
In this exercise, students practice adding two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Adding & Subtracting Rational Numbers
Practice adding and subtracting negative fractions, decimals, and percents. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
ICT Games
Ict Games: Rekenrek
This is an online tool where the teacher and students can use interactive beads on a rekenrek to model addition or subtraction.
University of Waterloo (Canada)
University of Waterloo: Math Frog: Solving Equations 2
Race against the clock to see how many simple equations you can solve correctly in three and a half minutes.
Khan Academy
Khan Academy: Estimating With Adding Decimals
For example, estimate 12.93 + 6.1 to be 19. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Speed Math Deluxe
The goal of SpeedMath Deluxe is to create an equation, as quickly as possible, from the four digits the computer gives you. You can use addition, subtraction, multiplication and division to create your equation, but you are not allowed...
Paul Dawkins
Paul's Online Notes: Algebra: Combining Functions
Detailed math tutorial features notes and examples that take a look at combining functions using addition, subtraction, multiplication, and division. It also discusses function composition. Includes practice and assignment problems.
ICT Games
Ict Games: Funky Mummy
Funky Mummy is a mobile-friendly number facts game. Play this game to practice quick recall of addition, subtraction and multiplication facts.
ABCya
Ab Cya: Turkey Touchdown
What's more Thanksgiving than turkey and football? What about turkeys playing football? Turkey Touchdown is a great way for kids to celebrate the holiday and practice their math facts. Kids will choose a level of difficulty, and then...
Cool Math
Coolmath: Coolmath4kids: Printable Flash Cards
Find here flashcards for addition, subtraction, multiplication, and division for printing off and coloring.
Quia
Quia: Story Problems With Mixed Practice
Your problem-solving skills are put to the test in this interactive word problem game on this site. Employ a variety of mathematical skills and strategies including logical reasoning and computation. Multiple choice problems created for...
Arcademics
Arcademics: Skateboard Pups
Multiplayer math game where puppy teams on skateboards race by solving two-step math problems.
ABCya
Ab Cya: Molly Adds & Subtracts From 10
This educational activity provides word problems with manipulatives for kids to practice adding and subtracting within 10. The word problems are read aloud and have objects that can be used for counting. Children may need assistance from...