-
1, 2, 3, 4, 5, 6...
- Natural Numbers
- (Hint: whole numbers not including zero; no negatives)
-
0, 1, 2, 3, 4, 5...
- Whole Numbers
- (Hint: natural numbers plus zero)
-
-3, -2, -1, 0, 1, 2, 3
- Integers
- (Hint: positive and negative whole numbers)
-
2/1, 0.6, 3/10, 2.957
- Rational Numbers
- (Hint: numbers that can be expressed as a division of integers - think "ratio")
-
π, √2, -√3, 9.472365, ∊
- Irrational Numbers
- (Hint: cannot be written as a simple fraction of decimal)
-
π, 23, 5/7, -4, 3.76, √7
- Real Numbers
- (Hint: all numbers on the number line; everything except i)
-
i, 5i, -i/2, 3i/4
- Imaginary Numbers
- (Includes imaginary numbers i.e. i, and numbers that are the sum of a real and imaginary part i.e. 5i)
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