Worksheet
Curated OER

Subtraction Worksheet : Numbers to 19 (1 of 3)

For Students 1st - 2nd Standards
In this subtraction worksheet, students find the differences to 53 horizontal and vertical subtraction problems. They work with numbers up to 19 and do not regroup while working.
Lesson Plan
Curated OER

Carry and Borrow

For Teachers 2nd
Second graders complete basic math computations. In this addition and subtraction lesson, 2nd graders learn how to carry and borrow numbers when adding and subtracting. Students learn a carrying song to help them remember. Students...
Lesson Plan
Curated OER

Subtracting Greater Numbers

For Teachers 4th - 5th
In this subtracting greater numbers worksheet, young scholars, with a partner, problem solve and calculate the answers to six addition equations.
Lesson Plan
Curated OER

The Weight of Primates

For Teachers 2nd
Second graders practice their problem solving skills. In this addition and subtraction skills lesson, 2nd graders solve word problems that require them to find differences and sums. This lesson features the use of a video titled...
Lesson Plan
Curated OER

Pattern Puzzles

For Teachers 1st - 2nd
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
Lesson Plan
Curated OER

Career Stories

For Teachers 2nd
Second graders write and solve word problems related to career stories.
Lesson Plan
Curated OER

A Borrower And A Lender Be

For Teachers 2nd
Second graders practice addition and subtraction in this fun, technology-based Mathematics lesson for the second grade classroom. The lesson includes resource links, video clips, interactive websites, and a section for pre-lesson...
Lesson Plan
Curated OER

Chart Trivia

For Teachers 1st - 3rd
Students practice addition and subtraction problems and answer questions using greater than and less than. They chart information to create a graph on the computer.
Unit Plan
CK-12 Foundation

Ck 12: Elem Math: Adding Two Digit Numbers With Regrouping

For Students 2nd - 4th
[Free Registration/Login may be required to access all resource tools.] The video models how to add two-digit numbers using regrouping. The video is followed by practice problems.
Unit Plan
Khan Academy

Khan Academy: Subtract 1 Digit Numbers With Regrouping

For Students 1st - 3rd
Practice solving problems like 46-9. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Add Whole Numbers, Add Decimals

For Students 3rd - 8th Standards
This website explains and defines adding whole numbers and decimals. Content explores addition with regrouping and how to align numbers in a written calculation. There are even practice problems at the end of the lesson.
Activity
School Express

School Express: Online Addition

For Students Pre-K - 1st Standards
Great place to sharpen your addition skills. Start with basic facts and go all the way up to 3 digit addition with regrouping. You select the level of difficulty and the number of problems. You can also check your answer right away.
Unit Plan
Khan Academy

Khan Academy: Subtracting Two Digit Numbers (No Regrouping)

For Students Pre-K - 1st Standards
In this exercise, students practice subtracting two-digit numbers (no regrouping). Students receive immediate feedback and have the opportunity to watch a tutorial video, get hints, and try questions repeatedly.
Whiteboard
ClassFlow

Class Flow: This Doesn't Add Up!

For Teachers 3rd - 5th
[Free Registration/Login Required] This flipchart teaches the steps in adding 2 or more digits with regrouping and gives students practice problems.
Interactive
AAA Math

Aaa Math: Adding Three Digit Numbers

For Students 2nd - 5th Standards
Read through this explanation of how to add three digit numbers. Use the online game to practice this skill. The game will keep running totals of your correct and incorrect answers. It will also show you a percent score of the correct...
Interactive
Quia

Quia: Add Your Way to a Million (Rags to Riches)

For Students 1st - 5th Standards
You can earn a million bucks playing this addition game. A succinct multiple choice game with hints, if you need them. Contains simple computation problems mixed with a few word problems. Must be able to add up to the millions place (one...
Unit Plan
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation

For Students Pre-K - 1st Standards
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
Unit Plan
Khan Academy

Khan Academy: Subtract 1 or 10

For Students 1st - 3rd Standards
Practice subtracting 1 or 10 from a 2-digit number (no regrouping). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Lizard Point Quizzes

Lizard Point: Subtraction Practice

For Students Pre-K - 1st Standards
At this site from Lizard Point Consulting, you can practice several different levels of difficulty of subtraction problems that use 1-digit numbers all the way up to 3-digit number subtraction problems that require regrouping. You can...
Activity
Lawrence Hall of Science

The Math Page: Skill in Arithmetic: Subtracting Whole Numbers and Decimals

For Students 3rd - 8th Standards
If you are looking for a website that explains and defines subtraction with decimals you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.
Activity
Lizard Point Quizzes

Lizard Point: Addition Practice

For Students Pre-K - 1st Standards
Practice several different levels of difficulty of addition problems from single digit all the way up to 3 digit with regrouping. You can also choose single digit addition with negative numbers. When you are finished you can print your...
Unit Plan
Cool Math

Coolmath: Coolmath4kids: Adding Numbers Within 1000

For Students 3rd - 4th Standards
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
Activity
University of Cambridge

University of Cambridge: Nrich: Super Value Codes

For Students Pre-K - 1st Standards
On this one page website sharpen your logic and addition skills while working on this challenge. The solution is available to double check your solution.
Activity
Quia

Quia: Adding to 10

For Students 3rd - 5th Standards
This website for young children gives them practice adding sums to 10. Problems are presented as teddy bears to add up with the corresponding digits that represent the problem symbolically.

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