Download presentation

Presentation is loading. Please wait.

Published byCaiden Piller Modified over 6 years ago

1
Order of Operations ( ) + X - 4343

2
The Order of Operations tells us how to do a math problem with more than one operation, in the correct order.

3
P lease E xcuse M y D ear A unt S ally This will help to you to remember the order of operations.

4
Add + Subtract - Multiply x Divide Please Excuse My Dear Aunt Sally P E MDMD ASAS Parentheses ( ) Exponents 4 3

5
Please Excuse My Dear Aunt Sally Parentheses ( ) Always do parentheses 1 st.

6
Please Excuse My Dear Aunt Sally Exponents 4 3 Always do Exponents 2 nd.

7
Multiply Divide Please Excuse My Dear Aunt Sally Do multiplication and division 3 rd, from left to right.

8
Add + Subtract - Please Excuse My Dear Aunt Sally Do addition and subtraction 4th, from left to right.

9
Let’s Try Some Problems!

10
PEMDAS 3+2 3 - (9+1) 3+2 3 - 10 3+8-10 11-10 1

11
PEMDAS 3 (9+1) + 6 2 3(10)+6 2 3(10)+36 30+36 66

12
PEMDAS 4+5 (6-2) 4+5 4 4+20 24

13
PEMDAS 4+ 10 2 3 -16 4+10 8 -16 4+ 80 -16 84-16 68

14
PEMDAS 21 + 10 2 10 21+100 10 21 + 10 31

15
PEMDAS 10+7 2 -2 5 10+49–2 5 10+49- 10 59 - 10 49

16
PEMDAS 64 (9 3-19) 64 (27 –19) 64 8 8

17
Example #1 14 ÷ 7 2 - 3 = 2 2 - 3 (Divide) = 4 - 3 (Multiply.) = 1(Subtract.)

18
Example #2 3(3 + 7) 2 ÷ 5 = 3(10) 2 ÷ 5(parentheses) = 3(100) ÷ 5(exponents) = 300 ÷ 5(multiplication) = 60(division)

19
Example #3 20 - 3 6 + 10 2 + (6 + 1) 4 = 20 - 3 6 + 10 2 + (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.)

20
Which of the following represents 11 2 + 18 - 3 3 · 5 in simplified form? 1.-3,236 2.4 3.107 4.16,996

21
Simplify 16 - 2(10 - 3) Answ er Now 1.2 2.-7 3.12 4.98

22
Simplify 24 – 6 · 4 ÷ 2 Answ er Now 1.72 2.36 3.12 4.0

23
1. substitute the given numbers for each variable. 2. use order of operations to solve. Evaluating a Variable Expression To evaluate a variable expression:

24
Example # 4 n + (13 - n) 5 for n = 8 = 8 + (13 - 8) 5 (Substitute.) = 8 + 5 5 (parentheses) = 8 + 1 (Divide l/r.) = 9 (Add l/r.)

25
Example # 5 8y - 3x2 + 2n for x = 5, y = 2, n =3 = 8 2 - 3 52 + 2 3 (Substitute.) = 8 2 - 3 25 + 2 3 (exponents) = 16 - 3 25 + 2 3 (Multiply l/r.) = 16 - 75 + 2 3 (Multiply l/r.) = 16 - 75 + 6 (Multiply l/r.) = -59 + 6 (Subtract l/r.) = -53 (Add l/r.)

26
What is the value of -10 – 4x if x = -13? Answ er Now 1.-62 2.-42 3.42 4.52

27
What is the value of 5k 3 if k = -4? Answ er Now 1.-8000 2.-320 3.-60 4.320

28
What is the value of if n = -8, m = 4, and t = 2 ? Answ er Now 1.10 2.-10 3.-6 4.6

Similar presentations

© 2022 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google