Math (numerical systems) Flashcards
Natural Numbers
Positive whole numbers that start at 1
Whole Numbers
Non-decimal positive numbers that start at 0
Integers
They are whole numbers, not decimals, that can be positive or negative and are rational
Fractions
type of rational number
Rational numbers
A type of real number that CAN be written in a fractional form. (So they could look like any positive or negative fraction, or they could reduce to an integer or whole number).
Irrational numbers
Irrational numbers are numbers that CANNOT be written as a fraction. (Often these are square roots or numbers that ‘go on forever without repeating’ on your calculator screen).
3.84 (what number sets does this number make)
Rational and nothing else
15
Natural Number, Whole Number, Integer, Rational
0
Whole Number, Integer, Rational
1/2
Rational