Understanding Squaring and Operations

The video introduces investigative math, focusing on tricks for calculating the sum of squares. The first trick involves recognizing when a number squared is added to three times that number squared, simplifying the calculation by multiplying the smaller number squared by 10. The second trick applies when a number squared is added to two times that number squared, where the smaller number squared is divided by 2 and then multiplied by 10. The video concludes with a problem set for practice and encourages viewer interaction.

What is the sum of 5 squared and 15 squared?

• 275

• 225

• 250

• 300

In the first trick, what do you multiply the smaller number squared by?

• 20

• 5

• 10

• 15

Tags

CCSS.6.EE.A.1

What is the smaller number squared in the example 5 squared plus 15 squared?

• 15

• 75

• 25

• 5

Tags

CCSS.6.EE.A.1

What is the sum of 8 squared and 16 squared?

• 340

• 320

• 360

• 380

Tags

CCSS.8.EE.A.2

In the second trick, what do you do after squaring the smaller number?

• Divide by 2

• Multiply by 2

• Divide by 10

• Multiply by 10

Tags

CCSS.6.EE.A.1

What is the smaller number squared in the example 8 squared plus 16 squared?

• 16

• 128

• 64

• 32

Tags

CCSS.6.EE.A.1

After dividing the smaller number squared by 2 in the second trick, what is the next step?

• Add 10

• Divide by 10

• Multiply by 10

• Subtract 10

Tags

CCSS.4.NBT.B.6

CCSS.5.NBT.B.6

What is the result of 64 divided by 2 in the second trick?

• 16

• 32

• 48

• 64

Tags

CCSS.4.NBT.B.6

CCSS.5.NBT.B.6

What should you do if you have questions about the tutorial?

• Leave a comment

• Rewatch the video

• Ask a friend

• Skip the question

Tags

CCSS.RI.5.7

CCSS.RI.6.7

CCSS.RI.7.7

CCSS.RL.5.7

CCSS.RL.7.7

What should you do if you enjoyed the video?

• Report it

• Leave a like

• Ignore it

• Dislike it

Tags

CCSS.RI.5.7

CCSS.RI.8.7

CCSS.RL.5.7

CCSS.RL.7.7

CCSS.RL.8.7