# Equal / Not equal

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Equal / Not equal
CCSS.MATH.CONTENT.1.OA.D.7

## Basics on the topicEqual / Not equal

### What is Equal, Not equal?

In this video Mr. Squeaks has just gotten his latest shipment of supplies! He’s excited to start inventing all sorts of amazing things, but first he needs to organize all of these boxes. He decides to organize them by weight to see which ones are equal. Read more below to learn about not less or equal.

#### Equal or Not Equal?

How can you know if two expressions are equal or not equal? We can use expressions and counting to help! When trying to figure out if two or more expressions are equal, start by solving the first expression.

In this video, we add two addends together to find the sum. Next, solve the second expression. You can do this using a variety of different strategies, remember that in this video we solved the expressions by counting up. Finally, compare the answers, or sums, to see if they are equal or not. If the sums are the same number, the expressions are equal! If not, they are not equal.

#### Equal Not Equal Practice

Let’s practice finding if expressions are equal or not equal with the example below.

Take a look at the expressions on these boxes. Do you think that they are equal or not equal? Remember to solve each expression and compare the answers to see if they are equal or not equal.

These expressions are equal!

Let’s try one more.

Do you think that the expressions above are equal or not equal? Don’t forget to solve the expressions and compare the answers!

6 + 2 does not equal 7 + 3. The sum of 6 + 2 is 8 and is not equal to the sum of 7 + 3, which is 10. These expressions are not equal! How do you write the not equal symbol? The not equal symbol looks like =/=. =/= does not equal means the sums are different.

#### Equal and Not Equal - Summary

When trying to figure out if expressions are equal to or not equal to…

• Step one: Solve the first expression

• Step two: Solve the second expression

• Step three: Compare the sums! If they are the same number, it is equal!

#### Equal and Not Equal – Additional Practice

At the end of the video, there are exercises for continued practice of making change through equal or not equal worksheets.

### TranscriptEqual / Not equal

Mr. Squeaks has just received a bunch of boxes with new supplies! He's excited to start inventing with new tools, but first, he needs to organize them. To be safe, he needs to make sure that each shelf has an equal weight. Let's learn about : "Equal, Not Equal" equations to help Mr. Squeaks! Let's take a look at Mr. Squeaks' first boxes. The first box on his scale has the expression four plus five. The second box on his scale has the expression six plus three. We need to compare these two expressions to see if they are equal or not equal. First, solve the first expression. While there are different ways to solve addition expression, in this video we will count up. What is five plus four? Let's count, we need to count four more from five. Six (...) seven (...) eight (...) nine. Four plus five is nine. Next, solve the second expression. What is six plus three? Let's count! Seven (...) eight (...) nine. Last, compare the answer from each expression. If the answers are the same, the expressions are equal. If the answers are different, the expressions are NOT equal. Are the two expressions equal? (...) YES! These boxes are equal! Now Mr. Squeaks is weighing two bigger boxes! The first box has the expression eight plus two. The second box has the expression five plus five. First, solve each expression by counting. What is eight plus two? So, we need to compare to see if eight plus two equals five plus five. Let's count! Nine (...) ten. Next, solve the second expression. Let's count! What is five plus five? Six (...) seven (...) eight (...) nine (...) ten. Finally, compare the answers from the expressions. Are they the same number? (...) YES! These expression are equal! Mr. Squeaks is weighing even more boxes! The first box has the expression six plus two. The second box has the expression seven plus three. First, solve each expression. What is six plus two? Try counting on your own. Six plus two is eight. Next, solve the second expression. What is seven plus three? Seven plus three is ten. Finally, compare the answers from the expressions. Are they the same number? (...) No! These expressions are NOT equal. Before we see how Mr. Squeaks likes his new tools, let's review! Remember when comparing equal and not equal expressions... Solve the first expression. Then, solve the second expression. Finally, compare the answers from the expressions. If the answers are the same the expressions are equal, if they are not the same the expressions are NOT equal. Now, let's see how Mr. Squeaks is doing! : "Hmm, that's strange, why is my scale so off balance?" : "Imani!"