1.Which number below is natural,whole,integer and rational?
A. -4 B. 0.7 C. 3 D. 5.1

2.Which of the following statement is always TRUE?
A. Some whole numbers are not rational.
B. All rational numbers are integers.
C. All Whole numbers are integers.
D. All integers are whole numbers.

3. Which of the following are irrational numbers?
l.
[tex] - \sqrt{100} [/tex]
ll.
[tex] \sqrt{400} [/tex]
lll.
[tex] \sqrt{40} [/tex]
lV.
[tex] \sqrt{10} [/tex]
4. The sum of 0.25 and 1/5 is ________.
A. rational because both are rational
B. rational because both are irrational
C. irrational because both are rational
D. irrational because both are irrational

5. The counting numbers starting from 1 and going to infinity belong to the set of _________.
A. integer
B. natural numbers
C. rational numbers
D. whole numbers

6. Which of the following is always TRUE?
A. 0.121212... is an irrational number.
B. 5.12345... is a real number.
C. 0.34353637 is an integer.
D. 8.14 is a natural number.



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