3Thavo §9.2 Calculating with exponents

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• Middelbare school
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• Leerjaar 3

§9.2 Calculating with exponents.

In this paragraph you'll learn a few rules for dealing with exponents!

It's possible to .....

as follows:

You see the final answer in the next slide!

 working out:

finally:

Below you see that you may add the exponents!

It is possible to write ......

Below you see why you may subtract the exponents,

to get the final exponent!

Similarly it is possible to write ....

Below you see that you may do:

4 x 5 = 20, to find the new exponent!

Below you see the 3 rules summarised,

now only with letters, not numbers:

Task 1:

key in your answer in the next slide:

A.                           B. 

C.                           D. 

  

2​48​​

2​12​​

8​12​​

6​12​​

x x =

2​4​​

2​6​​

2​2​​

1. 2^48
2. 2^12
3. 6^12
4. 8^12

Task 2:

Key in your answer in the next slide:

A.                     B.  

C.                       D.  

3​13​​

3​90​​

9​13​​

3​21​​

Task 2. The answer is: .............

1. 9^13
2. 3^13
3. 3^90
4. 3^21

Solution:

Task 3: Key in your answer in the next slide:

  

A.  5          B. 

C.               D.

5​4​​

5​5​​

​5​​1​​

Task 3: The answer is:

1. 5
2. 5^5
3. 5^4
4. 1/5

Solution task 3:

Finally there is one more thing you are going to learn and carry out. See below, to have an idea of what I mean:

 

 On p.60 you will find this. The Example that followS the Theory above, makes it more clear.

Homework time

Now do:

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