Natural and Integer Numbers

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1. Top of Form Which one of the following is a natural number?

  1. - 5
  2. 3/7
  3. 2.112
  4. 1,000,000

 

2. Is zero a natural number?

  1. Yes
  2. No
  3. It depends on the context
  4. Sometimes

 

3. The number .64 is an example of a _____.

  1. whole number
  2. decimal
  3. remainder
  4. division problem

 

4. Put the following in increasing order:

a.       -2, -5, +8, -9, +11

  1. -11, +21, -31, +41, -51
  2.  +4, -10, 0, +6, -9
  3. -6, -2, -8, -15, -22
  4. -16, +19, +34, -47, -88
  5. -10, +6, -50, +10, 0

 

5. Write:

  1. 4 numbers greater than - 5 but less than 0
  2. 5 numbers greater than - 6 but less than 1

 

6. What are the solutions of the following equations?

a.      X + 8 = 12 
b.       - 9 = 25
c.      X + 15 = 6
d.      3 x Y = 9

 


7. Solve the following:

a.       Find two consecutive integers whose sum is equal 129.

b.       The sum of three consecutive even integers is equal to 84. Find the numbers.

c.       The sum of the first and third of three consecutive odd integers is 131 less than three times the second integer. Find the three integers.


8. Factor the following numbers to their prime factors.

18           6            14
/ \        / \            / \



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