BELL WORK! 1. 7(14 – 9)

2.

3. 175 ÷

37

28

2535 Answer35

Answer7

Answer35

Order of Operations

with exponents

Location of Exponent

An exponent is a little number high and to the right of a base number.

34Base

Exponent

What an Exponent Represents

An exponent tells how many times a number is multiplied by itself.

34

= 3 x 3 x 3 x 3

How to read an Exponent

This exponent is read three to the fourth power.

34Base

Exponent

How to read an Exponent

This exponent is read three to the 2nd power or three squared.

32Base

Exponent

How to read an Exponent

This exponent is read three to the 3rd power or three cubed.

33Base

Exponent

Read These Exponents

9 2 6 72 3 5 4

What is the Exponent?

2 x 2 x 2 =23

What is the Exponent?

5 x 5 x 5 x 5 =54

How to Multiply Out an Exponent

= 3 x 3 x 3 x 33

92781

4

You Try:

5 3=12

5

Let’s Try Some Problems!

PEMDAS3 (9+1) + 623(10)+62

3(10)+3630+3

6 66

PEMDAS3+23- (9+1)3+23-

103+8-1011-101

PEMDAS4+ 10 x 23 -164+10 x 8 -164+ 80 -

1684-1668

PEMDAS

21 + 102 1021+10010

21 + 10 31

PEMDAS10+72-2 x 5 10+49–2 x 5 10+49-

10 59 - 104

9

Challenge!!20 - 3 • 6 + 102 + (6 + 1) • 4

= 20 - 3 • 6 + 102 + (7) • 4(parentheses)

= 20 - 3 • 6 + 100 + (7) • 4(exponents)

= 20 - 18 + 100 + (7) • 4 (Multiply l/r.)

= 20 - 18 + 100 + 28 (Multiply l/r.)

= 2 + 100 + 28 (Subtract l/r.)

= 102 + 28 (Add l/r.)

= 130 (Add.)

Skills Check!When you finish turn your paper

over and put it in the corner of your desk. Silent read, work on other homework or practice more problems. No talking.

Practice:Blue BookPages 20-21#’s 1-23