What

1
Whats a whole number?
2
What is a whole number (and what isnt?)

• Whole numbers give us an amount of whole things
  not parts (fractions), and not negative amounts.
• Zero is a whole number (because we could have
  zero whole things).
• 0, 5, 17, 443 and 19,098 are all whole numbers.
• -3, 4 ½ , 0.3 and 5.102 are not.

3
What are integers?

• All the whole numbers are integers and so are
  negative numbers, if they dont have fractions
  or decimals.
• -3 is an integer.
• 445 is an integer.
• 3.4 is not an integer -4 ½ is not an
  integer.
• So integers can be positive or negative or
  zero, but they cant have the in between
  numbers that fractions and decimals stand for.

4
Whole numbers or not?

• 3 14 3.333 -10
• 4.4 0 3333 -3.333
• 91 5 1/3 -5 1/3 500

5
Whole numbers or not?

• 3 YES 14 YES 3.333 NO -10 NO
• 4.4 NO 0 YES 3333 YES -3.333 NO
• 91 YES 5 1/3 NO -5 1/3 NO 500 YES