Unit 5 review

Unit 5 review

Adding and subtracting whole numbers and decimals

• Line up the decimals

• fill in empty spaces with zeros

• The decimal in whole number is at the end

• Pay attention to how many things are in your problem

Multiple Choice

Mr. Arswan prepares a mixture for a science experiment. He measures 10.5 grams of wood shavings, 150 grams of iron filings, and 18.50 grams of salt. What is the total mass of Mr. Arswan's mixture?

• 30.5 grams
• 150.5 grams
• 179 grams
• 12.9 grams

Multiplication

• When you are repeating the same number over an over again

• Stick with what you know!

Multiple Choice

Scrubbies Car Wash is open 9 hours each day, Monday through Saturday. If they wash 22 cars each hour of a day, how many cars will be completed in 6 days?

• 1,188

• 198

• 132

• 54

Division

• When you are taking a big number and braking it into equal groups

• Know what to do with the remainder.

• Trash it

• Copy it

• Add one more to the quotient

Multiple Choice

Luther will display his entire collection of model cars in cases. He has 98 cars and will display no more than 4 cars in a case. What is the minimum number of cases he needs to display all of his cars?

• 25

• 24

• 30

• 28

Strip diagrams and equations

• equations tell what you are going to do to solve the problem

• Know hwat strip diagrams belong with what operations

Multiple Choice

• A

• B

• C

• D

Input and output

• Remember the rules to an input and output table.

• the rule must apply to all the rows

Multiple Choice

• A

• B

• C

• D

Multi-step

• TAKE YOUR TIME!

• Use CUBES

Multiple Choice

Cindy makes scented candles to give as gifts to 8 friends. She melts 6 bags of wax chips. Each bag contains 20 ounces of wax chips. After melting the wax, she pours it equally into 8 candle jars. How many ounces of wax does Cindy use for each candle?

• 120

• 30

• 15

• 12