Number Theory

1. Which of the following does NOT describe the following numbers: -2, -1, 0, 1, 2

Natural Numbers

Rational Numbers

Whole numbers

Integers

2. Evaluate 5 + (6-2) x 4

3. Calculate 3.3 x 2.5 + 5.7 x 2.5

13.25

8.25

9.0

22.5

4. What are the next two numbers in the following sequences? 1,4,9,____, _____

5. What is a real number?

Rational Numbers

Irrational Numbers

Rational and Irrational Numbers

None of the above

6. What is the lowest common multiple of 6, 10 and 15 ?

7. Without using calculators, determine if 472 is divisible by 3.

Yes

No

8. List the prime numbers less than 15. Do not leave spaces, separate the numbers by a comma.

9. Without using calculators, determine if 963 is divisible by 9.

Yes

No

10. What is the highest common factor of 14 and 21?

Loading …