EngageNY
An Appearance of Complex Numbers 2
Help the class visualize operations with complex numbers with a lesson that formally introduces complex numbers and reviews the visualization of complex numbers on the complex plane. The fifth installment of a 32-part series reviews the...
Curated OER
Math Cross, Puzzle #26
Here is a measurement, money and time activity which invites learners to solve twenty-eight math problems utilizing addition, subtraction and multiplication strategies to complete a math crossword puzzle.
Curated OER
Fact Families
There is something to be said for fact families. Classmates read problems and write related fact families and number sentences. There are 6 wonderful problems to solve.
Curated OER
The Math Lesson 25
In this math skills worksheet, students enhance their addition and subtraction skills by solving the 20 pages of double and triple digit equations.
Math in English
Number Patterns
Build the pattern recognition skills of young mathematicians with this simple skills practice worksheet. Given nine different sequences of two-digit numbers, children must identify the pattern and determine the next three numbers in...
EngageNY
Getting a Handle on New Transformations 1
In the first of a two-day lesson on transformations with matrix notation the class transforms the unit square using general transformations, then calculates the area of the transformed image. They discover it is the same as finding the...
EngageNY
Sums and Differences of Decimals
Sometimes dealing with decimals is so much easier than dealing with fractions. The ninth lesson in a 21-part module has the class consider situations when it might be easier to add or subtract fractions by first converting to decimals....
EngageNY
The Relationship of Multiplication and Division
Take any number, multiply it by five, and then divide by five. Did you end up with the original number? In the same vein as the previous lesson, pupils discover the relationship between multiplication and division. They develop the...
Curated OER
Check Subtraction with Addition
In this subtraction learning exercise, students subtract, then check by adding. Problems are set up side by side, with the correct answer to the addition check noted for the student.
Curated OER
Solve Addition and Subtraction Equations
In this solving addition and subtractions equations practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
Curated OER
Boxes of Patterns- Following the Rule in Addition and Subtraction Patterns
In this addition and subtraction pattern enrichment worksheet, 2nd graders follow the given rule to fill in the pattern boxes. They examine the patterns as they add and subtract with two digit numbers, and write a sentence telling what...
Curated OER
Story Subtraction
In this story problems worksheet, students solve 5 word problems in which two and three digit numbers are subtracted. There will be regrouping.
Curated OER
Naming Numbers
In this addition and subtraction fact families instructional activity, 1st graders write five fact family answers for each of six numbers. In a sample problem, students are instructed to find names for 8. The sample answers are 4+4 and...
Curated OER
Using Doubles to Subtract
In this subtraction worksheet, 1st graders use addition doubling patterns to subtract numbers. For instance, one problem asks students to subtract three from six. They are directed to think that 3+3=6. Students write the answer to 6-3.
National Security Agency
Integers: Quick, Fun and Easy To Learn
A good complement to any integers unit contains a three-day lesson plan about positive and negative integers, adding and subtracting integers, and how to find the additive inverse. Additionally, it provides all necessary worksheets and...
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...
Virginia Department of Education
Using Order of Operations and Exploring Properties
If you need some creative ways to teach the order of operations, use a series of activities that focus on properties. Each activity uses different materials and works as a stand-alone activity, or can build upon the concepts of the last...
Super Teacher Worksheets
Number Patterns
Pattern recognition is an essential step in the development of young mathematicians fluency with the four basic operations. This simple skills practice worksheet asks children identify and complete three different numerical patterns,...
Virginia Department of Education
Practical Problems Involving Decimals
After discussing decimals and "going shopping" in the classroom, young mathematicians are given four practical word problems that require them to estimate their answers, given specific information. The highlight of the lesson is having...
Math Worksheets Land
Add and Subtract to 100
Give your scholars some basic practice with addition and subtraction problems. Because the answers are explained at the bottom, consider projecting this and covering up the bottom, revealing only after class responses have been shared....
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
Add and Subtract Equations
One of these addition number sentences is incorrect: which one is it? Beginning mathematicians examine two simple equations, circling the one that is correct. An explanation on the bottom walks them through the processing, including...
Curated OER
Leveled Problem Solving Solving Addition and Subtraction Equations
In this adding and subtracting equations practice worksheet, learners sharpen their problem solving skills as they solve 6 story problems.
Curated OER
Addition and Subtraction
In this addition and subtraction worksheet, learners analyze a math sentence such as: 16+2 = 12-6. Students solve the problems on each side of the equal sign, and mark "true" if the answers are the same and "false" if they are different....