Curated OER
Complex Numbers
The class practices, on paper and/or on a TI graphing calculator the concepts of how to add, multiply, divide and subtract complex numbers using the correct property.
DK Publishing
Real-Life Problems, Large Numbers
Do your fourth graders have a hard time showing their work when solving word problems? This helpful worksheet provides two separate spaces for students to show their work and to fill in the answer. The first problem is solved for them as...
Mathed Up!
Addition and Subtraction
After watching a brief video on addition and subtraction, young mathematicians are put to the test. Including 12 problems, individuals solve word problems to find the least number, total amount, and difference of numbers.
Curated OER
Add or Subtract Whole Numbers Up to 1000
Elementary schoolers solve practice problems on the board and are shown how to line up the numbers for addition. They solve various addition problems in small groups. Everyone continues the same process for solving subtraction problems.
Curated OER
Adding and Subtracting Fractions with Like and Unlike Denominators
In this math worksheet, learners compute with fractions. Five of the problems involve common denominators. Four of the problems require students to first find the common denominator. Six problems are multiple choice. One problem involves...
Curated OER
Fraction X - Adding Unlike Denominators
Adding fractions with unlike denominators is a difficult process to master. This fine presentation does a terrific job of leading young math whizzes through the steps necessary to perform this calculation. The slides have clear graphics,...
National Security Agency
Introducing Integers and Their Operations
There's nothing negative about this mini-unit on integers! Engaging young mathematicians in a series of hands-on activities and collaborative learning opportunities, this resource offers an excellent way to introduce your class...
Curated OER
Mentally Add and Subtract 10 or 100
Here are some number lines that need to be completed. There are two number sequences, one to test addition skills and the other for subtraction. Both sequences include counting by 10, but the subtracting question has scholars count...
Curated OER
Mentally Add and Subtract 10 or 100
Find the missing digits in these number sequences. Each of the ten has one missing number and scholars must figure out what it is. Here's the pattern: all of these sequences involve counting by 10s. Learners add or subtract 10 to...
Curated OER
Add and Subtract within 20
Here is a more interesting way to practice addition and subtraction number sentences. Learners complete two sum boxes, adding across and down then totaling for a final sum. They do the same with subtraction in two more boxes. Finally,...
Curated OER
Add and Subtract within 20
The sums and differences only reach 20 in this arithmetic worksheet. Scholars answer 10 simple number sentences, some involving two numbers and others with three. They choose the correct answer from a list on the right. There are the...
Noyce Foundation
Apple Farm Field Trip
Monitor the growth of young mathematicians with a comprehensive addition and subtraction assessment. Using the context of a class field trip to an apple orchard, this series of four story problems allows children to demonstrate their...
Curated OER
Adding and Subtracting Numbers is Scientific Notation
In this Algebra I/Algebra II worksheet, students add and subtract numbers written in scientific notation. The one page worksheet contains six problems. Solutions are provided.
Curated OER
Adding and Subtracting Fractions
For this fractions worksheet, students practice adding and subtracting thirty-three fraction math and word problems. Students check their answers online as they go.
Curated OER
Adding and Subtracting Up to 5 Guided Lesson Explanation
A teacher resource, this scripted lesson details how learners can solve addition and subtraction problems involving numbers up to five. The referenced pupil worksheet is not included.
Curated OER
Positive and Negative Numbers
Pupils use blocks and markers to illustrate the processes of adding, subtracting, multiplying and dividing integers. In this mathematics lesson, learners use Algebra blocks to demonstrate multiplying polynomials.
CK-12 Foundation
Add and Subtract Three Mixed Numbers: Walking to School
Mixed numbers are the focus of a five-question interactive. Scholars move fraction pieces into strips and equations to find solutions. Questions challenge participants with multiple-choice, a true or false, and one discussion.
Math Antics
Working with Parts
Get a clearer picture of working with fractions. While continuing to work with fractions as parts, the video shows how to use drawing to compare and add fractions. Worksheets then provide opportunities for pupils to practice comparing,...
EngageNY
Complex Numbers as Vectors
Show your math class how to use vectors in adding complex numbers. Vectors represent complex numbers as opposed to points in the coordinate plane. The class uses the geometric representation to add and subtract complex numbers and...
Inspired By Kindergarten
Numbers 1-10
Preschoolers and kindergartners can master numbers 1-10 with a set of math worksheets. Each page features one number that kids trace, represent with tally marks, and write what number they will have after adding or subtracting 1.
Curated OER
Adding and Subtracting Like Mixed Numbers (1)
In this mathematics worksheet, students solve a number of problems by adding and subtracting similar mixed numbers. There are ten problems to solve on the sheet.
Curated OER
Adding and Subtracting with Tenths
In this adding with tenths worksheet, students add and subtract numbers whose decimals go to the tenths place. Students complete 10 problems total.
Curated OER
Adding and Subtracting Integers
For this algebra worksheet, students solve problems containing integers using addition and subtraction. They add positive and negative numbers correctly. There are 30 problems with an answer key.
Curated OER
Piecing it Together: Adding & Subtracting Fractions
Learners add and subtract fractions and mixed numbers with unlike denominators. They "fish" for and solve a number of fraction problems requiring adding, subtracting, finding equivalent fractions, and using mixed numbers.