Worksheet
Curated OER

Adding and Subtracting Rational Expressions 9-4

For Students 7th - 9th
In this addition and subtraction learning exercise, students solve 15 problems in which they add or subtract with monomial denominators, binomial denominators, and complex fractions.
Worksheet
Curated OER

Adding and Subtracting Numbers is Scientific Notation

For Students 9th - 11th
In this Algebra I/Algebra II instructional activity, students add and subtract numbers written in scientific notation.  The one page instructional activity contains six problems.  Solutions are provided. 
Worksheet
Helping with Math

Fractions: Subtracting Mixed Numbers (Different Denominator)

For Students 5th - 6th Standards
If your math magicians have mastered adding and subtracting with uncommon denominators, here is a challenge: subtract mixed numbers with uncommon denominators. The values are pretty easy to work with, so this would be appropriate for...
Worksheet
Curated OER

Odd or Even?

For Students 1st - 3rd
There are multiple objectives at play here as scholars solve addition and subtraction problems and determine whether the sums and differences are odd or even. As they solve these, encourage pupils to observe patterns. What happens when...
Lesson Plan
Curated OER

Interesting Integers

For Teachers 6th - 8th
Middle schoolers add and subtract integers. In this algebra lesson, students analyze integers using hands on manipulative. They solve problems of addition and subtractions using their signs correctly. They play a game of cards to...
Worksheet
Curated OER

Collections: Word Problems

For Students 2nd - 3rd
Young scholars read multiple step story problems and solve by adding and subtracting. They solve five problems.
Printables
1
1
K-5 Math Teaching Resources

Ten Frame

For Teachers Pre-K - 2nd Standards
Engage young mathematicians in building their number sense with this set of ten frame printables. Whether you're teaching pupils how to count, add, or subtract, these tools offer children tremendous support with...
Lesson Plan
EngageNY

Scientific Notation

For Students 8th Standards
Young mathematicians learn how scientific notation is meant to save time. Part 10, out of a series of 15, asks scholars to recognize the correct use of scientific notation and finish by adding and subtracting numbers using...
Interactive
PHET

Make a Ten

For Students 1st - 2nd Standards
Rate the resource as a perfect 10. Pupils use an interactive to help add and subtract numbers. They first explore how to express whole numbers using hundreds, tens, and ones, then explore how to add whole numbers by combining to make...
Lesson Plan
Curated OER

20 Tickets

For Teachers 1st - 2nd Standards
A great hands-on activity involving adding and subtracting, beginner mathematicians determine how many games can be played with 20 tickets. Instead of tickets, youngsters use 20 counters or linking cubes to represent the amount of...
Interactive
CK-12 Foundation

Add and Subtract Decimals with Front-End Estimation: Wooden Beams

For Students 6th - 8th Standards
A six-question interactive tasks mathematicians to solve addition and subtraction problems using front-end estimation. Question types consist of multiple-choice and true or false. A set of wooden beams that can be measured using moveable...
Interactive
CK-12 Foundation

Expression Evaluation with Different Denominators: Adding Mixed Fractions of Water

For Students 6th - 8th Standards
An interactive challenges mathematicians to add mixed fractions with unlike denominators. Five questions—fill-in-the-blank and multiple-choice—build from one to the next leading the way to an open discussion about denominators and...
Lesson Plan
Curated OER

Writing Number Sentences

For Teachers 6th - 8th
Students practice writing number sentences. After reading real world problems, they describe the same situation by writing a number sentence. Students use algebra tiles, or counters, to demonstrate the use zero pairs in solving...
Lesson Plan
Curated OER

Add & Subtract Fractions w/Unlike Denominators, 2

For Teachers 7th - 9th
Students use several examples to create a method for adding and subtracting fractions with unlike denominators. They present these methods to the class and then practice applying methods to sample problems.
Worksheet
Curated OER

Add and Subtract Decimal Hundredths [F]

For Students 3rd - 4th
In this decimal worksheet, students add or subtract a total of 32 problems, all either adding or subtracting decimal hundredths.
Worksheet
Curated OER

Add and Subtract Decimal Hundredths [J]

For Students 3rd - 5th
For this decimal worksheet, students add or subtract a total of 32 problems, all either adding or subtracting decimal hundredths.
Worksheet
Curated OER

Add and Subtract Decimal Hundredths [G]

For Students 3rd - 5th
In this decimal worksheet, learners add or subtract a total of 32 problems, all either adding or subtracting decimal hundredths.
Worksheet
Curated OER

Add and Subtract Decimal Hundredths [I]

For Students 3rd - 5th
In this decimal worksheet, students add or subtract a total of 32 problems, all either adding or subtracting decimal hundredths.
Interactive
Curated OER

Subtracting Integers

For Students 4th - 6th
In this integer worksheet, students subtract integers to solve a set of 10 problems. Answers and hints are available on-line; a reference web site for additional resources is given.
Worksheet
Curated OER

Addition and Subtraction: 3 Numbers Combination

For Students 3rd - 4th
In this multiple operations math instructional activity, students solve 17 problems in which three 2 digit numbers are added and subtracted. Problems are in a horizontal format.
Worksheet
Curated OER

How Many Now?

For Students 1st - 2nd
In this more and less instructional activity, learners solve 6 problems in which multiples of ten are added or subtracted from a specified number.
Worksheet
Curated OER

Solving Positive and Negative Numbers

For Students 5th - 6th
In this positive and negative numbers worksheet, students solve 60 problems in which integers are added or subtracted. There are no hints or examples.
Lesson Plan
Curated OER

Add and Subtract with Hudson River shipping

For Teachers 2nd - 3rd
Rivers aren't just a place for animals to live, they also provide industrial transportation. The class will examine the Hudson River on a map, discuss all the commercial vessels that use the River to transport materials, then complete a...
Worksheet
Curated OER

Adding and Subtracting Like Mixed Numbers (7)

For Students 5th
In this mixed number fractions worksheet, 5th graders add and subtract to solve the mixed number fractions. Students solve 10 fraction equations.

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