What’s a whole number?
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What’s a whole number?
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What’s a whole number?. What is a whole number (and what isn’t?). 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. - PowerPoint PPT Presentation
Transcript of What’s a whole number?
What’s a whole number?What is a whole number (and what
isn’t?)
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.*
What are integers?
All the whole numbers are integers… and so are negative numbers, *if* they don’t 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 can’t have the “in between” numbers that fractions and decimals stand for.
Whole numbers or not?
3 14 3.333… -10
4.4 0 3333 -3.333
Whole numbers or not?
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.*
What are integers?
All the whole numbers are integers… and so are negative numbers, *if* they don’t 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 can’t have the “in between” numbers that fractions and decimals stand for.
Whole numbers or not?
3 14 3.333… -10
4.4 0 3333 -3.333
Whole numbers or not?
