# Numbers and Operations Teacher Resources

Find Numbers and Operations lesson plans and worksheets
Showing 49 - 72 of 3,613 resources
4:42
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#### Imaginary Numbers Are Real (Part 3: Cardan's Problem)

For Students 9th - 12th Standards
Were complex numbers discovered or invented? A video presentation makes the case for the discovery of square roots of negative one. In order for complex numbers to be real, then they must behave like other numbers, which they do in terms...
1:41
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#### How Do You Multiply a Whole Number by a Fraction?

For Teachers 6th - 12th
A quick demonstration of how to multiply a whole number times a fraction.
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#### How Do You Put Whole Numbers in Order From Greatest to Least?

For Teachers 6th - 12th
So you want to put some given values in order from greatest to least? The instructor starts out by drawing a place value chart. She then inserts all the numbers into the chart. This helps you visually see their value so you can compare...
7:13
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#### How Do You Put Whole Numbers in Order From Least to Greatest?

For Teachers 6th - 12th
So you want to put some given values in order from least to greatest? The instructor starts out by drawing a place value chart. She then inserts all the numbers into the chart. This helps you visually see their value so you can compare...
6:06
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#### How Do You Compare Two Whole Numbers?

For Teachers 6th - 12th
Two very similar numbers and you have to figure out which one is larger. The teacher diagrams a place value chart and shows you how to write the two numbers to make a comparison.
3:38
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#### Imaginary Numbers Are Real (Part 6: The Complex Plane)

For Students 9th - 12th Standards
How do addition and subtraction work on the complex plane? A short video presentation provides a clue on how to add complex numbers geometrically. The video ends with four problems to determine the rules for multiplication on the complex...
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#### Introducing Integers and Their Operations

For Teachers 6th - 8th Standards
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 to...
6:22
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#### Divide with Two-Digit Divisors Using Base Ten Blocks

For Students 5th - 7th Standards
How does multiplication help when dividing a number? Prepare your number crunchers to become fluent in dividing multi-digit numbers by relating base ten blocks to the standard algorithm with this video. Reinforce students’ understanding...
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#### Rounding Whole Numbers

For Teachers 4th
Review the rules of rounding whole numbers then work through several practice problems that show how to determine what is being asked based on the context of a problem. There are four multi-step word problems for learners to solve that...
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#### Math 7 Study Guide for Number Sense and Operations: Quiz 1

For Students 7th - 8th Standards
This number sense and operations study guide provides notes and explanations as well as practice problems. In order to practice their math skills, learners write fractions as decimals, identify which number set a number belongs to, take...
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#### Bowling Over the Order of Operations

For Teachers 4th - 6th Standards
Upper graders will solve equations using order of operations, and create equations that to play a fun math bowling game. They will bowl using dice to practice operations. Extensions are also included.
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#### Order of Operations with Rational Numbers - Problem Solving 22.4

For Students 5th - 7th
Middle schoolers examine three equations with missing numbers or symbols then solve five word problems where they must use rational numbers and the correct order of operations.
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For Teachers 1st - 5th
Youngsters practice looking for the links to numeracy in their classes. This isn't a worksheet but a curriculum guide for an entire unit. Teachers can use any part of the resource to extend or inform their teaching practices related to...
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#### Order of Operations with Rational Numbers - Reteach 22.4

For Students 5th - 8th
Middle schoolers solve eight fill-in-the-blank problems where they use correct order of operations to evaluate each mathematical expression. An explanation of order of operations and two clear examples are provided.
2 In 2 Collections
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#### 5 Dice: Order of Operations Game

For Students 5th - 9th Standards
Sometimes the simplest ideas can be the most challenging to solve! In this app, you are given five numbers and a set of operators, and you need to create an expression that when evaluated using the order of operations simplifies as the...
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#### Complex Numbers

For Teachers 10th - 12th Standards
Learners are introduced to the concept of imaginary unit and complex numbers. They are taught how to add and subtract complex numbers. Students define a complex number. They comprehend at least two applications of complex numbers....
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#### Prime and Composite Numbers

For Teachers 6th - 7th
Prime and composite numbers are the focus of this mathematics lesson. In it, learners practice techniques for identifying these two types of numbers. They utilize the Inspiration program to complete a task that is clearly explained, and...
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#### Ordering Large Numbers: Numbers up to 9,200,000

For Students 3rd - 5th Standards
Once learners understand place value, they can put all kinds of numbers in order - even eight-digit numbers! Fourth graders put groups of five numbers in order from smallest to largest. After they finish, they decipher a word problem and...
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#### Putting Numbers in Order, Numbers Up to 9,900

For Students 3rd - 5th Standards
Put these big numbers in order! Fourth graders review the example at the top of the page before putting 16 sets of 4-digit numbers in order from smallest to largest. You can cut the three sections of problems into strips of paper for...
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#### Writing Numbers

For Students 2nd - 4th
A multi-faceted approach to place value! Third graders write four-digit numbers, as well as interpreting the written forms of large numbers. Use the resource as a unit assessment, or in parts as a warm-up activity throughout the week.
1 In 1 Collection
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#### Complex Numbers

For Teachers 9th - 12th Standards
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.
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#### Multiplying Larger Numbers by 1-Digit Numbers

For Students 3rd - 5th Standards
Introduce multiplication with large numbers to your fourth grade class. A straightforward worksheet provides three and four-digit numbers, multiplied by one-digit numbers, to help transition your learners into more difficult...
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#### Place Value for Whole Numbers

For Students 3rd - 5th
Work with small and large numbers alike with a place-value activity. After writing the value of selected numbers, fourth graders write what happens to each number if they change certain parts of it.
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#### Using Positive and Negative Numbers in Context

For Teachers 6th - 8th Standards
Measure the temperature of your math class with a temperature-based lesson plan on adding and subtracting rational numbers. The thermometer serves as a vertical number line for learners as they work together to solve a temperature change...