Easy Algebra Step-by-Step

213

Answer Key

Chapter 1 Numbers of Algebra

Exercise 1

1. 10 is a natural number, a whole number, an integer, a rational number, and a real
   number.


2. 
   
   
   
   664040. 8 is a rational number and a real number.
           3.^8
           125
   
   
   
   

2

5

(^3) =
is a rational number and a real number.

4. −π is an irrational number and a real number.


5. −1000 is an integer, a rational number, and a real number.


6. 2 is an irrational number and a real number.


7. −^3
   4

is an irrational number and a real number.

8. −=^9 −
   4

3

(^2)
is a rational number and a real number.

9. 1 is a natural number, a whole number, an integer, a rational number, and a real
   number.
   10.^30. 001001 = 010 is a rational number and a real number.


10. Closure property of multiplication


11. Commutative property of addition


12. Multiplicative inverse property