Hank is thinking of a number that has a 7 in the ten-millions place and thousands place. Which of the following could be Hank’s number?

• 7,647,903,442

• 5,678,973,442

• 2,678,907,442

• 1,647,907,442

Tracy is thinking of a number that rounds to 5,000. Which of the following could NOT be Tracy’s number?

• 5,007

• 5,110

• 4,005

• 4,950

View the conversion below. Write the number in standard form.

(5 x 1,000,000,000) + (7 x 10,000,000) + (9 x 1,000,000) + (6 x 10,000) + (5 x 1,000) + (4 x 100) + (8 x 10)

• 5,790,065,480

• 579,065,480

• 5,079,065,480

• 5,790,605,480

What is the estimated sum of the numbers below?

568 + 912 = ?

• 1,478

• 1,480

• 1,470

• 1,481

Compare the numbers below. What is the the appropriate sign that goes in the middle (<, =, >). 1,909,650,439___ 1,990,650,493

• >

• <

• =

• None of them

Which statement is true about the circled digit?

• The value of the circled digit is 100 times the the underlined digit.

• The value of the circled digit is 10 times the the underlined digit.

• The value of the circled digit is one-tenth times the the underlined digit.

• The value of the circled digit is 1 times the the underlined digit.

What is 9,040,592,045 in expanded form?

• 9,000,000,000 + 4,000,000 +50,000 + 9,000 + 200 + 40 + 5

• 9,000,000,000 + 40,000,000 +500,000 + 90,000 + 2,000 + 40 + 5

• 9,000,000,000 + 4,000,000 +50,000 + 90,000 + 200 + 40 + 5

• 900,000,000 + 4,000,000 +50,000 + 9,000 + 200 + 40 + 5

Order these numbers from GREATEST to LEAST.

105,141,234 105,312,639 105,243,987 105,613,456