Estimation & Number Theory

Question 1

What is the numeric form of 30,000+500+90+3?

Accepted Answer

30,593

Question 2

Which number is a prime number?

Accepted Answer

13

Question 3

Which number rounded to the nearest hundred is 43,300?

Accepted Answer

43,274

Question 4

Which list of numbers contains all composite numbers?

Accepted Answer

6, 8, and 9

Question 5

Which product gives the most reasonable estimate of 7,798 × 6?

Accepted Answer

7,800 × 6

Question 6

6,000 is ____ times greater than 60. (Hint: what happens to numbers moving left in place value)

Accepted Answer

100

Question 7

What number belongs in the blank to make this given condition true? 5_,783 > 55, 986

Accepted Answer

7

Question 8

What is 89,148 rounded to the nearest hundred?

Accepted Answer

89,100

Question 9

Which of the following statements is incorrect?

Accepted Answer

45 is a prime number.

Question 10

What is the complete factor set of 24?

Accepted Answer

1, 2, 3, 4, 6, 8, 12, 24

Question 11

What is the total value of 40 hundreds (flats)?

Accepted Answer

4,000

Questions 11