Simplifying Numerical Expressions with Decimals

Simplifying Numerical Expressions with Decimals

Multiple Choice

DO NOW: Tim and Linda went on a 15 day cruise for their honeymoon. The cruise cost $975 per person. What should they do to figure the amount they spent per day on the cruise?

• Find the product of 15 and $975 then divide by 2

• Find the product of $975 and 2 then divide by 15

• Find the sum of $975 and 15 then divide by 2

• Find the product of 15 and 2 then multiply $975

Vocabulary

• Expression -a mathematical phrase, with no equal sign or comparison symbol, that may contain a number(s), an unknown(s), and/or an operator(s)

• Order of Operations- he rules of which calculations are performed first when simplifying an expression

rEmEmBEr

• P- Parentheses and Brackets

• M- Multiplication

• D- Division

• A - Addition

• S-Subtraction

Multiple Choice

What is our answer?

8 x (3.8 + 13.2) − 6

• 136

• 124

• 88

• 130

Multiple Choice

What do we do first?

[2(3.50 − 1.5) + 4.85 + 2.40] − 3.00

• 2 x 3.50

• 3.50 - 1.5

• 1.5 + 4.85

• 2 +4.85

Multiple Choice

What is our next expression after

[2(2) + 4.85 + 2.40] − 3.00

• [7 + 4.85 +2.40]

• [2(2) + 7.25] - 3.00

• [2 + 6.85 +2.40] - 3.00

• [4 + 4.85 +2.40] - 3.00

Multiple Choice

What would we do next and why?

[4 + 4.85 +2.40] - 3.00

• subtract 3 because it is subtraction

• subtract 4 -3 because it is first

• add 4 + 4.85 + 2.40 because it is in brackets

Multiple Choice

Solve:

[4 + 4.85 +2.40] - 3.00

• 9.25

• 8.25

• 3.25

• 6.25

Open Ended

CHECK #1

Open Ended

EXIT TICKET:

What is the value of the expression shown?

4[4.5 - (1.50)] -4.72