Unit 7 Math Review

What is the correct way to write the value of the money shown below?

• 1.73

• 1.73$

• $1.73

• ¢1.73

Answer explanation

The correct way to write the value of money is to place the dollar sign before the amount. Therefore, $1.73 is the proper format, indicating that it is a monetary value in US dollars.

Tags

CCSS.4.MD.A.2

Drew has $1.29 in coins. Which set of coins in equal to $1.29?

• A

• B

• C

• D

Answer explanation

To find the correct set of coins that equals $1.29, we check each option. Option B contains the right combination of coins (e.g., quarters, dimes, nickels, and pennies) that totals $1.29, making it the correct choice.

Liza has the following coins. How much money does Liza have?

• $1.47

• $1.37

• $1.32

• $1.42

Answer explanation

Liza has a combination of coins that totals $1.42. This amount is calculated by adding the values of each coin she possesses, confirming that $1.42 is the correct total.

What is two hundred nine written in expanded form?

• 200+90+0

• 200+10+9

• 200+9

• 200+90+9

Answer explanation

Two hundred nine can be broken down into its place values: 200 for the hundreds and 9 for the units. Therefore, the correct expanded form is 200+9, which accurately represents the number without unnecessary components.

Tags

CCSS.2.NBT.A.3

What is this number written in standard form? six hundred thirty

• A. 613

• B. 603

• C. 630

• D. 633

Answer explanation

The phrase 'six hundred thirty' translates to the number 630 in standard form. Therefore, the correct answer is C. 630.

Tags

CCSS.2.NBT.A.3

Which statement is true?

• 537 > 753

• 268 < 682

• 178 < 125

• 301 > 941

Answer explanation

The statement '268 < 682' is true because 268 is less than 682. The other statements are false: 537 is not greater than 753, 178 is not less than 125, and 301 is not greater than 941.

Tags

CCSS.2.NBT.A.4

What is the value of the 7 in the number 732?

• 700

• 70

• 7

• 7,000

Answer explanation

In the number 732, the 7 is in the hundreds place, which means it represents 700. Therefore, the value of the 7 in 732 is 700.

Tags

CCSS.4.NBT.A.1

The table below shows the number of different kinds of cookies sold at a store. Which shows these numbers in order from greatest to least?

• 308, 354, 376

• 376, 354, 308

• 354, 376, 308

• 376, 308, 354

Answer explanation

To order the cookie sales from greatest to least, we compare the numbers: 376 is the highest, followed by 354, and then 308. Thus, the correct order is 376, 354, 308.

Tags

CCSS.4.NBT.A.2

Which amount does the model represent?

• 6 hundreds, 2 tens, 4 ones

• 2 hundreds, 0 tens, 4 ones

• 18 hundreds, 4 ones

• 1 hundred, 8 tens, 4 ones

Answer explanation

The model represents 1 hundred (100), 8 tens (80), and 4 ones (4). When combined, this equals 184, confirming that the correct choice is 1 hundred, 8 tens, 4 ones.

Tags

CCSS.2.NBT.A.3

What number does the model above represent?

• 234

• 243

• 423

• 342

Answer explanation

The model represents the number 243, as it is formed by placing 2 in the hundreds place, 4 in the tens place, and 3 in the units place. Thus, the correct answer is 243.

Tags

CCSS.2.NBT.A.3