1. Lesson # 21
Range

2. This lesson will be easier if…
You
Pay
Attention !

3. The “Range”…
Of a group of numbers
Is…

4. The “difference” …
Between the largest…

5. To find a “difference”…
And the Smallest …
In a group of numbers.
But
Remember…
To find a “difference”…

6. Subtract !

7. Let’s do a sample question…
Watch Carefully !

8. Here is a group of numbers…
3, 5, 8, and 9.
Find their “range”.

9. First…Find the biggest
3, 5, 8 and 9 (hmmm?)
First…Find the biggest
(9 right)
Then
Find the smallest
(3 right)

10. Subtract (Find the difference)…
Next…
Subtract (Find the difference)…
The biggest (9)
minus
the Smallest (3)

11. The “Range” then is “6”. Ta Dah !

12. Another example…
Find the range of
12, 18, 19, 22

13. Step # 1…Find the biggest (22)
Step # 2…Find the smallest (12)
Step # 3…
Subtract !

14. 22 – 12 = 10 (right) The range then is 10!
Good, you got it…
Now you are ready for 10
Practice questions!

15. Find the “Range” of …
The next 10
Groups of numbers.

16. Question # 1
7, 8, 9, 10

17. Question # 2
12, 15, 18, 20

18. Question # 3
6, 9, 5, 7

19. Question # 4
33, 22, 55, 44

20. Question # 5
40, 45, 35, 30

21. Question # 6
5/10
3/10
2/10
7/10

22. Question # 7
33%
35%
40%
42%

23. Question # 8
23.8
24.1
24.5
24.8

24. Question # 9
11.2
12.0
12.4
11.8

25. Question # 10
123
132
126
129

26. And now the answers.
Prepare
Yourself !

27. Question # 1
7, 8, 9, 10 3

28. Question # 2
12, 15, 18, 20 8

29. Question # 3
6, 9, 5, 7 4

30. Question # 4
33, 22, 55, 44 33

31. Question # 5
40, 45, 35, 30 15

32. Question # 6
5/10, 3/10, 2/10, 7/10
5/10

33. Question # 7
33%, 35%, 40%, 42%
9 %

34. Question # 8
23.8, 24.1, 24.5, 24.8 1

35. Question # 9
11.2, 12.0, 12.4, 11.8
1.2

36. Question # 10
123, 132, 126, 129 9

37. Almost… The
End

38. People do not wake up one morning and know how to play
Remember…
People do not wake up one morning and know how to play A
Guitar!
It takes
Practice!

39. Now…
The
End