Unit 4 Test Review

Unit 4 Test Review

Extending Decimals and Financial Literacy

Representing the Thousandths Place

• Expanded Notation - Writing a number to show the value of each digit.

  For example: 265.13 = (2 × 100) + (6 × 10) + (5 × 1) + (1 x 0.1) + (3 x 0.01)

• Word Form - Writing a number how you would say it with words. For example: 265.13 = two hundred sixty-five and thirteen hundredths

• Remember: The tenths place is the first place value to the right of the decimal. The hundredths place is the second place value after the decimal. The thousandths place is the third place value after the decimal.

Multiple Choice

Write the decimal for twenty-three hundredths.

• 2.3

• 0.23

• 230

• 0.230

Multiple Choice

Milton and Cliff each create a video presentation for a social studies project. The length of Milton’s video is 4.739 minutes. The length of Cliff’s video is 4.039 minutes. Which video matches Milton’s video in expanded notation?

• (4 × 10) + (7 × 1) + (3 × 0.1) + (9 × 0.01)

• (4 × 1) + (7 × 0.1) + (3 × 0.01) + (9 × 0.001)

• (4 × 1) + (73 × 0.1) + (9 × 0.01)

• (9 × 1) + (3 × 0.01) + (7 × 0.1) + (4 × 0.001)

Multiple Choice

In 24.736, which digit is in the thousandths place?

• 4

• 7

• 3

• 6

Multiple Choice

One meter is equal to about 3.281 feet. What is the word form of this decimal number?

• three and twenty-eight hundredths and one thousandth

• three and two hundred eighty-one thousandths

• three and two tenths and eighty-one thousandths

• three point two hundred eighty-one

Comparing and Ordering Decimals

• When comparing decimals you must remember to line up the decimals so your place values will line up naturally and start comparing left to right.

• > is greater than

• < is less than

• = is equal to

• Remember: when ordering decimals to pay attention whether it says "least to greatest OR greatest to least".

Multiple Choice

Order the numbers from greatest to least

4.25, 4.52, 4.02, 4.5, 4.2

• 4.25, 4.52, 4.02, 4.5, 4.2

• 4.02, 4.2, 4.25, 4.5, 4.52

• 4.52, 4.5, 4.25, 4.2, 4.02

Multiple Choice

4.123 ___ 4.2

• >

• <

• =

Multiple Choice

Use the >,<, or=0.07____ 0.7

• <

• >

• =

Multiple Choice

Mount Logan in Canada is 3.702 miles high. Mount McKinley in Alaska is 3.848 miles high and Pico de Orizaba

in Mexico is 3.571 miles high. Order these mountains by height from greatest to least.

• Logan, McKinley Pico de Orizaba

• McKinley, Logan, Pico de Orizaba

• Pico de Orizaba, Logan, McKinley

• Logan, Pico de Orizaba, McKinley

Multiple Choice

Melinda compares four numbers. Which shows the numbers from least to greatest?

• 3.04; 3.685; 3.529; 3.10

• 3.10; 3.04; 3.685; 3.539

• 3.04; 3.10; 3.529; 3.685

• 3.10; 3.04; 3.529; 3.685

Rounding Decimals

• First, figure out which place value you are rounding to and underline the digit in that place value.

• Next, circle the "judge" which is the place value directly to the right of your underlined digit.

• The judge will help you decide if you are keeping the underlined digit the same or if you are rounding it up

• Remember: "4 or less - let it rest, 5 or more - add one more"

• With decimal numbers, you do not have to change every digit after the underlined digit to a zero, but you can, it will not affect the value - just make the number look differently.

Multiple Choice

Round to the nearest hundredths place

77.538

• 77.53

• 77.54

• 78

• 77.5

Multiple Choice

Which of the following is 4.52 when rounded to the nearest hundredth?

• 4.453

• 4.449

• 4.512

• 4.523

Multiple Choice

Which number rounds to nine tenths?

• 0.84
• 0.85
• 0.95
• 0.09

Multiple Choice

Which of the following is 4.5 when rounded to the nearest tenth?

• 4.34

• 4.44

• 4.52

• 4.61

Multiple Choice

Round 23.542 to the nearest tenth.

• 23.5

• 23.6

• 23.54

• 23

Addition and Subtraction of Decimals

• When adding and subtracting decimals you MUST line up your decimals so your place values will also line up.

• It's also helpful to fill in the "empty" spots with zeros so your addition or subtraction doesn't confuse you.

• When subtracting, remember your regrouping rules. You can only borrow from your neighbor. You cannot borrow from someone that does not have anything (a zero).

Multiple Choice

Jan is shopping for her new puppy. She has $50.00 to spend. She wants to buy a collar for $5.64, a leash for $14.70, and a dog bed for $24.95. All prices include tax. How much money will she have left after paying for these 3 items?

• $ 45.29

• $ 35.30

• $ 25.05

• $4.71

Multiple Choice

Arturo is looking at 2 snakes in a pet store. One snake is 18.6 centimeters long. The other snake is 24.2 centimeters long. Arturo wants to know the difference in the lengths of the snakes. What is the difference in length of the snakes?

• 14.4 cm

• 5.6 cm

• 5.8 cm

• 6.6 cm

Multiple Choice

Kaitlyn loves to roller skate. Since she skates so much, she decided to buy her own skates. She looked at several stores and found a pair she liked for $74.79. She has $193.42 in her savings account. If she takes out the money to buy the skates, how much money will be left in her savings account?

• $268.21
• $118.63
• $124.65
• $256.86

Multiple Choice

Jerry bought 6.95 lbs of cherry and lime jelly beans for his birthday party. If 1.75 lbs were cherry flavor, how many pounds were lime flavor?

• 5.2
• 8.7
• 9.7
• 5.02

Multiple Choice

Find the sum 3.35 + 1.4 + 3.65

• 8.9
• 8.22
• 8.43
• 8.4

Financial Literacy

• Debit card vs. Credit Card -

• Different Types of Taxes -

Multiple Choice

Sally wants to use her credit card to pay for a mountain bike. What is the disadvantage of using the credit card?

• She does not have to carry cash in her purse.

• she could borrow the money for the bike until next month

• she may earn rewards such as free air miles

• she might have to pay interest

Multiple Choice

Aurelio needs to get $100 cash today in order to pay for rides and foods at the carnival for him and his children. He goes to find an ATM to get his money. Which of the following would enable him to get his money quickly out of his checking account?

• credit card

• debit card

• electronic transfer

• check

Multiple Choice

What is the greatest disadvantage of paying for items with credit cards?

• credit card payments are immediately taken out of your checking accounts

• credit cards can put many people in debt and can take many years to pay off

• credit cards are difficult to use in most retail stores

• you cannot buy very expensive items with credit cards

Multiple Choice

Which tax is collected by the federal government based on an individual’s yearly earnings?

• A. Sales Tax

• B. Income Tax

• C. Property Tax

• D. Not here

Multiple Choice

Mr. Martinez’s employer withholds $213 from his paycheck each month. The tax money helps fund federal programs such as Social Security and Medicare. What is the name of the tax Mr. Martinez pays?

• A. Sales tax

• B. Property tax

• C. Payroll tax

• D. Not here

Multiple Choice

Which of these is not an example of a property tax?

• Tax paid on the value of a farm a person owns

• Tax paid on the value of a piece of land a person owns

• Tax paid on the value of a piece of furniture a person owns

• Tax paid on the value of a home a person owns