Algebra Foundations Series- 1.2 Order of Operations
1.2 Part 1 Order of OperationsI CAN:- Simplify expressions involving exponents.- Use the order of operations to evaluateexpressions.
You’ve Won a Prize! • You’ve won! For your prize, you get to choose between the two options shown: Prize 1: Prize 2: You get $1 on the You get $60 first day. Then, immediately. each day for the next five days, you get twice the previous day’s amount.Which would you choose?
Opener a) Write this in math language: eight less than twice a number. b) What is the result if the original number is 40? c) What is the result if the original number is 20? d) If the result is 0, what is the original number? e) What was the most popular baby girl name in 1994? Boy name?
Chocolate Math 1. Pick the number of times per week you’d like to have chocolate. (At least once but less than ten times.) 2. Multiply this number by 2. 3. Add 5. 4. Multiply it by 50. 5. If you have already had your birthday, add 1758. If you haven’t, add 1757. 6. Now subtract the four-digit year you were born in. 7. You should have a three-digit number. THE FIRST DIGIT OF THIS IS YOUR ORIGINAL NUMBER THE NEXT TWO NUMBERS ARE YOUR AGE
Try This…2+3·5 add first2+3·5 multiply firstUh Oh! We got different answers!
Order of Operations• 1. Perform any operations inside grouping symbols, such as parentheses ( ) and brackets [ ]. A fraction bar also acts as a grouping symbol.• 2. Simplify powers.• 3. Multiply and divide from left to right.• 4. Add and subtract from left to right.
Attributes• Textbook: Prentice Hall Algebra I Foundations Series• Certain slides were lifted from Dan Meyer’s amazing algebra curricula through use of a Creative Commons attribution license. If you haven’t been to Mr. Meyer’s website and teach math, you’re surely missing out! http://blog.mrmeyer.com/