Powers of Ten Lesson

Powers of the ten

Open Ended

What do you think the powers of ten are?

Powers of ten chart

take a look and make a prediction on the next slide.

Open Ended

After taking a look at the chart, what do you think they are?

Powers of ten

Powers of ten are numbers that multiply and show repeated addition or in this case multiplication.

How to do it

• Over here it says 10², now we must multiply 10, twice.

• As an example, 10 x 10 = 100.

• So the answer is 100.

• Another way to do it is just add 2 zeros behind the one.

• ​The little 2 behind 10 is called an exponent.

​In other words...

​

​The exponent of a number shows how many times the number is multiplies by itself.

Example

• This time, I have laid the equation underneath it.

• when we multiply, we start with 3 x 3 and get 9.

• Next we multiply 9x3 because 3 is the next number, and so we get 27.

• Lastly we get 27 x 3 and get the answer which is 81!

Note* Any time a number has a power of 0, it always is equal to 1.

​

10​⁰ = 1

36⁰ = 1​

51⁰​ = 1

88⁰ = 1​

Pronunciation

When we say these powers, we say it like this, " 10 to the 5th power", " 6 to the second power", "4 to the first power".

Multiple Choice

what is 5⁴?

• 20

• 9

• 54

• 625

Multiple Choice

Which power of ten is equivalent to 1 ?

• 10^1

• 10^5

• 10^0

• 10^2

Done

You have now understood what the powers of ten is!