Today we will compute examples (of positive integer powers of nonnegative integers) as repeated...
-
Upload
elijah-freeman -
Category
Documents
-
view
222 -
download
0
Transcript of Today we will compute examples (of positive integer powers of nonnegative integers) as repeated...
Today we will compute examples (of positive integer
powers of nonnegative integers) as repeated
multiplication.
compute=to solvepositive integer =whole numbers greater than zerononnegative integers =positive numbers
• Positive integer- a whole number greater than 0.
• Nonnegative integer- a whole number greater than 0.
• Power or Exponent- a mathematical notation indicating the number of times a quantity is multiplied by itself.
– A power or exponent is placed to the right of and above another number.
34
3 x 3 x 3 x 3
81
Multiply 3x3x3x3 = 81
31 33
34
32
It is important to know how to read and write exponents because they are used when finding the area of certain
places.It is on your grade level standards probably all the way until you graduate 12th
gradeWhat other reasons can you
think of why it is important to read and write
exponents?
Definition of Exponent
• An exponent tells how many times a number is multiplied by itself.
34Base
Exponent
Repeated Multiplication
• Sometimes multiplication is done over and over and over.
• To write 3x3x3x3 we write 34
What an Exponent Represents
• An exponent tells how many times a number is multiplied by itself.
34
= 3 x 3 x 3 x 3
Products of powers with the same base can be found by writing each power as a repeated multiplication.
To write 5x5x5x5 we write 54
Fall 2004 9
Combining Exponents
5
32
x
xxxxx
xx
EXPONENTS
• Writing numbers with exponents is a method to write repeated multiplication
• Five squared is:
• Four cubed is:
• Two to the fourth power is:
25 5 5 25 34 4 4 4 64
42 2 2 2 2 16
What does the dot mean?
2 . 2 . 2 =16The . (dot) means you multiply
EXPONENTS
• Five squared is:
• Four cubed is:
• Two to the fourth power is:
25 5 5 25 34 4 4 4 64
42 2 2 2 2 16
Write as using exponents
5 45 . 5 . 5 . 5 =
What is the Exponent?
5 . 5 . 5 . 5 =54
What is the Exponent ?
8 . 8 . 8 . 8 =84
Now you tryWrite as Exponent
7 . 7 . 7 . 7 . 7 =75
Now you tryWrite as Exponent
8 . 8 . 8 . 8 . 8 =85
What does the dot mean in 2.2.2.2?
How do you write 5.5.5.5.5 in exponent form?
5
The dot means you multiply.
5