Order of Operations Please Excuse My Dear Aunt

Order of Operations Please Excuse My Dear Aunt Sally Parenthesis (Grouping Symbols) Exponents Multiplication and } left to right Division Addition and } left to right Subtraction

Evaluate Expressions Find the value of 24 ÷ 8 × 3. Divide 24 by 8. 9 Multiply 3 and 3.

Evaluate Expressions Find the value of 5(4 + 6) – 7 7. ● 5(4 + 6) – 7 7 ● 5(10) – 7 7 ● 50 – 49 1

Find the value of 3[(18 – 6) + 2(4)] 3[12 + 8] 3[20] 60

49 + 31 Find the value of 19 - 14 49 + 31 19 - 14 80 5 Answer: 16

Find the value of 63 ÷ 7 + 2. A. 7 B. 10 C. 8 D. 11

Find the value of 3(12 – 10) + 14 ÷ 2. 4[(3 + 8) – 2(4)]. A. 13 A. 16 B. 20 B. 12 C. 33 C. 144 D. 10 D. 36

Translate Phrases into Expressions Write a numerical expression for the verbal phrase. Phrase the quotient of eighteen and six Key Word quotient (Divide) Expression 18 ÷ 6 Answer: 18 ÷ 6

Phrase the sum of nine and five Key Word sum (Add) 9+5

the product of three and five the difference of seventeen and six A. 3 + 5 A. 17 + 6 B. 3 – 5 B. 17 – 6 C. 3 × 5 C. 17 × 6 D. 3 ÷ 5 D. 17 ÷ 6

EARNINGS Madison earns an allowance of $5 per week. She also earns $4 per hour babysitting, and usually baby-sits 6 hours each week. Write and evaluate an expression for the total amount of money she earns in one week. Words $5 allowance per week Expression 5 plus $4 per hour spent baby-sitting. + Multiply. Add. Answer: Madison earns $29 in one week. 4× 6

The Good Price Grocery Store advertises a special on 2 -liter bottles of soft drinks. The first bottle purchased is $1. 50 and each bottle after that is $1. 20. Write and evaluate an expression for the total cost when 8 bottles are purchased. A. 1. 50 + 8(1. 20) = 11. 10 B. 1. 50 + 7(1. 20) = 9. 90 C. 2 + 1. 50 + 1. 20 + 8 = 12. 70 D. 1. 20 + 7(1. 50) = 11. 70