CP 1 Review

1. The underlined number in 68.35 represents three tenths. Which of these numbers contains a 3 that is ten times GREATER than the underlined 3 in 68.35?

• a. 35.24

• b. 71.30

• c. 221.13

• d. 453.89

2. Bailey wrote two numbers, as shown below.

1. 3,586,927

2. 3,859,672

Which is a correct comparison of the digits in Bailey’s numbers?

• a. The value of the digit 7 in the first number is 10 times the value of the digit 7 in the second number

• b. The value of the digit 6 in the first number is 1/10 the value of the digit 6 in the second number.

• c. The value of the digit 9 in the first number is 10 times the value of the digit 9 in the second number

• d. The value of the digit 8 in the first number is 1/10 the value of the digit 8 in the second number

3. 3. Which of the following tables shows equivalent numbers in exponential form and number form?

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• 
• 
• 

4.  Which statement shows (7 × 10⁵) + (5 × 10³) + (4 × 10²) + (6 × 10¹) ?

• a. 7,546

• b. 705,460

• c. 750,460

• d. 705,406

5. 5. Which of the equations correctly multiply by a power of 10?

6. Choose the TWO correct answers.

• a. 1.88 × 10³ = 188

• b.  8.01 × 10⁵ = 801,000

• c.  2,008.1 × 10² = 20.081

• d. 1.75 × 10⁴ = 17,500

• e. 0.66 × 10⁴ = 66,000

6. The Pet Rescue center has 5 beagle puppies that are ready for adoption. The puppies and their weights in kilograms are shown in the table below.

A volunteer at the Center is converting the numbers to grams by multiplying by 103 . Which weight has been correctly converted?

• a. Barney weighs 2,016 grams.

• b. Hugo weighs 426 grams

• c. Lucky weights 3,800 grams.

• d. Milo weighs 200 grams

7. 7. The students in Mrs. Harwood's class measured their height in inches. The chart shows the heights of four of her students.

Which list correctly shows the height of students from tallest to shortest (greatest to least)?

• a. 56.78; 57.04; 56.81; 57.40

• b. 57.40; 57.04; 56.81; 56.78

• c. 56.78; 56.81; 57.04; 57.40

• d. 57.40; 56.81; 56.78; 56.04

8. Which statements are correct? Select TWO that apply.

• a. 563.724 is equal to (5 × 100) + (6 × 10) + (3 × 1) + (7 × 1/10) + (2 × 1/100) + (4 × 1/1000) .

• b. 289.537 is equal to (2 × 1000) + (8 × 100) + (9 × 10) + (5 × 1/10) + (3 × 1/100) + (7 × 1/1000) .

• c. 875.396 is equal to (8 × 100) + (7 × 10) + (5 × 1) + (3 × 1) + (9 × 1/10) + (6 × 1/100) .

• d. 456.982 is equal to (4 × 1000) + (5 × 100) + (6 × 10) + (9 × 1) + (8 × 1/10) + (2 × 1/100) .

• e. 397.845 is equal to (3 × 100) + (9 × 10) + (7 × 1) + (8 × 1/10) + (4 × 1/100) + (5 × 1/1000) .

9.  Mr. Wolfe wrote a number on the board in expanded form. 

(4 × 1) + (6 × 1/10) + (9 × 1/1000) 

He asked his math students to write the number in standard or word form. Some students and their answers are shown. 

● Belen: 4.096 

● Kara: four and sixty-nine thousandths 

● Liam: 4.609 

● Sam: four and six hundred nine thousandths 

Which students wrote the number correctly?

• a. Belen and Sam

• b. . Kara and Belen

• c. Liam and Sam

• d. Kara and Liam

10. Use the number line to help.

Which statement is true about the number 3.43?

• a. To the nearest hundredth, 3.43 rounds to 3.4

• b. To the nearest tenth, 3.43 rounds to 3.4.

• c. To the nearest hundredth, 3.43 rounds to 3.5.

• d. To the nearest tenth, 3.43 rounds to 3.5.