Unit Plan
Curated OER

All About Money

For Teachers K - 3rd Standards
Few topics engage young mathematicians as much as learning about money. Through a series of shared readings and hands-on activities, children explore the US currency system, learning how to count money and calculate change as they create...
Printables
Curriculum Corner

Order of Operations Task Cards (2)

For Students 4th - 7th Standards
Young mathematicians use their PEMDAS knowledge to solve 20 different task cards. They evaluate expressions to find the answer of multiplication, division, addition, subtraction, and exponential problems. Then, they record their answers...
Lesson Plan
Silver Burdett Ginn

Study Buddies: Adding And Subtracting Fractions With Unlike Denominators

For Teachers Pre-K - 6th Standards
Pair up your math pals to teach each other about adding and subtracting uncommon denominator fractions! Step-by-step instructions are provided as well as five practice problems. 
Worksheet
Curated OER

Adding and Subtracting Negative Numbers

For Students 6th - 7th
In this positive and negative numbers worksheet, learners solve 50 problems in which positive and negative integers are added and subtracted. There is detailed instruction provided. This page was intended to be an online activity, but...
Worksheet
Curated OER

Adding and Subtracting Integers Two

For Students 3rd - 6th
In this addition and subtraction worksheet, students add and subtract one and two digit numbers including negative numbers. Students complete 120 problems.
Lesson Plan
Curated OER

Checking Addition and Subtraction by Estimation

For Teachers 5th - 6th
In this mathematics worksheet, students solve various equations using different methods. They estimate each answer by checking the additions and subtractions given for each. Then, students write in the decision column wither definitely...
Assessment
Mathed Up!

Algebraic Fractions

For Students 9th - 12th
Learn ways to simplify algebraic fractions with a video that reviews how to simplify rational expressions by canceling common factors and how to add and subtract simple rational expressions. A worksheet tests pupils' understanding...
Lesson Plan
Curated OER

Translate Word Phrases and Sentences into Equations

For Teachers 8th - 11th Standards
Use this video to show your learners an example of how to translate word phrases into an equation to solve a real-world problem. The presenter begins with a review of how to use cross products to solve a proportion, including how to do...
Lesson Plan
Curated OER

Do I Add? or Subtract?

For Teachers 4th
Fourth graders read a book.  In this word problems lesson, 4th graders review the operations addition and subtraction, read the book Sea Sums, learn strategies for determining if they should add or subtract, and solve story problems,
Worksheet
Curated OER

Math B Regents Questions by Performance Indicator: Rational Numbers

For Students 9th - 11th
In this rational number worksheet, students add and subtract quantities containing radical expressions.  They identify equivalent expressions.  This three-page worksheet contains 15 multiple-choice problems.  Answers are...
Worksheet
Curated OER

Two-Digit Addition and Subtraction No Regrouping (A)

For Students 2nd - 4th
In this addition and subtraction worksheet, students find the sums and differences by adding and subtracting two-digit numbers with no regrouping. Students solve 36 problems.
Lesson Plan
Curated OER

Two-Digit Addition and Subtraction No Regrouping (B)

For Teachers 2nd - 4th
In this adding and subtracting two-digit numbers worksheet, students find the sums and differences with no regrouping. Students solve 36 problems.
Worksheet
Curated OER

One-Digit Addition and Subtraction No Regrouping (B)

For Students 1st - 3rd
For this addition and subtraction worksheet, students find the sums and differences of one-digit numbers with no regrouping. Students solve 47 problems.
Lesson Plan
Curated OER

One-Digit Addition and Subtraction (B)

For Teachers 1st - 3rd
In this addition and subtraction worksheet, students find the sums and differences of one-digit numbers. Students solve 49 problems.
Lesson Plan
Curated OER

Two-Digit Addition and Subtraction (A)

For Teachers 2nd - 4th
In this two-digit addition and subtraction worksheet, students solve with mixed regrouping and no regrouping. Students solve 49 problems.
Lesson Plan
Curated OER

Two-Digit Addition and Subtraction (B)

For Teachers 4th - 6th
In this adding and subtracting two-digit numbers worksheet, students find the sums using mixed regrouping and no regrouping. Students solve 49 problems.
Worksheet
Curated OER

Three-Digit Addition and Subtraction (H)

For Students 3rd - 4th
In this mixed addition and subtraction learning exercise, students find the sums and differences for three-digit numbers. Students solve 49 problems.
Lesson Plan
Curated OER

Buying and Budgets

For Teachers 4th
Fourth graders add and subtract decimals as they use a table to solve budget based problems.
Worksheet
Math Mammoth

Add & Subtract Whole Hundreds 1

For Students 3rd
In this mathematics worksheet, 3rd graders compare the problem 2700 plus 200 to the problem 27 plus 2 and explain their reasoning. Then they notice the patterns for each of the problems and continue them.
Lesson Plan
Curated OER

Quarters, Dimes, and Nickels

For Teachers 2nd
Second graders add and subtract coins, decide which coins to use to purchase an item, and compare values of sets of coins.
Lesson Plan
Curated OER

Addition and Subtraction Pick n Mix 2

For Teachers 4th
Fourth graders practice a wide range of strategies for solving addition and subtraction problems containing decimal fractions. They add and subtract fractions, decimals and integers while generalizing the properties of operations with...
Lesson Plan
Curated OER

Adding and Subtracting Fractions with Like Denominators

For Teachers 3rd - 4th
Students add or subtract fraction parts of mixed numbers before adding or subtracting the whole number parts. In this fractions lesson, students learn to use a ruler to help them add and subtract fractions with like denominators.
Interactive
CK-12 Foundation

Subtraction of Fractions: Fragmented Fractions

For Students 5th - 8th Standards
An interactive challenges scholars to subtract mixed numbers. Pupils answer questions—multiple-choice, fill in the blank, and true or false—with help from virtual fraction strips. The practice closes with a discussion. 
Activity
Illustrative Mathematics

Hitting the Target Number

For Students 2nd Standards
Make combinations to reach the target. Learners play a game to add and subtract numbers between 0 and 10 to reach a target number between 10 through 20. Teachers use the game to help pupils learn efficient ways to add and subtract within...