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Concepts
Decimals
Order of Operations
Word Problems
Mix it up!
100
Give the correct order of operations
What is parentheses, exponents, multiplication/division (left to right), addition/subtraction (left to right)?
100
4.005 x 2.33 = 933165 Place the decimal point in the answer.
What is 9.33165?
100
3 x 4 + 5
What is 17?
100
Mr. Krabs has 60.14 lbs of meat. Billy Fishkin came to the Krusty Krab and ordered 10.7 lbs of meat. How much meat does Mr. Krabs have left?
What is 49.44 lbs?
100

7 + 4 x 2 is equivalent to...

What is 15?

200
Why is the order of operations important?
Because everyone can solve the problem the same correct way.
200
0.213 + 0.546 + 0.789 + 0.371
What is 1.919?
200
7 + (2 x 4) -1
What is 14?
200
A machine in a deli cooks hot dogs by rotating them past a heat source. One rotation takes 3/4 of a minute. It takes 9 minutes to fully cook the hot dog. How many rotations does it take to cook the hot dog?
What is 12 minutes?
200
What does 5³ mean?
What is 5 x 5 x 5?
300
What is the rule for multiplying decimals?
Ignore the decimals and multiply like whole numbers. Add the decimal into the answer depending on the number of decimal places in the two numbers.
300
66.15 ÷ 0.63 = ______
What is 105?
300
The first step in this equation: 2 x (7 +4) - 1
What is 7+4?
300
A toy costs $17.45. Which is closest to the total cost of 5 of the toys? a. $50.00 b. $80.00 c. $90.00 d. $120.00
What is c, $90.00?
300
6² ÷ (3 x 2) x 4 For this expression, list the operations in the order in which you should perform them.
What is parentheses, exponents, division, multiplication?
400
In this problem... 0.03 + 15 What do you have to do to 15, since it is a whole number, in order to add it to 0.03?
Add a decimal point and zeros after 15. 15.00 + 0.03 _________
400
8.04 x .004 = _______
What is 0.03216?
400

(5 x 4) – 6 ÷ 2 + 9

What is 26?

400

A baker sells 12 cupcakes for a total of $8.35. For each additional cupcake, the cost is $1.75 per cupcake. How much would 15 cupcakes cost?

What is $13.60?

400
Tom went to the grocery store. He bought two bags of apples for $2.99 per bag. He also bought three oranges that were each $0.99. How much money did he spend in all?
What is $8.95?
500

What is the rule for dividing decimals?

 Bring the decimal point up to your answer and forget about it.

500
Bob went to Starbucks. He spent $42.05 on five muffins. How much did each muffin cost?
What is $8.41?
500
1² + 2² x 3² - 4²
What is 21?
500
Amy drove her car five days this week. The total driving times were: 2.5 hrs, 3.3 hrs, 4.1 hrs, 1.2 hrs and 3.6 hrs. Which is the best estimate for the total number of hours Amy drove this week? a. 12 hours b. 15 hours c. 14 hours d. 16 hours
What is 15 hours?
500
The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?
I solved the problem from left to right as it is written without using the order of operations.