# types of numbers

## 14 terms

### complex numbers

2-3i, 7, square root of 3, sq root of -5, have the form of a+bi--a and b r real and i is sq root of -1

### real numbers

have points on the number line, 3, -17.4, pie, 4/3, sq root of 5

### imaginary numbers

square roots of negative numbers, sq root of -5

### negative numbers

less than 0, -1, -56

### zero

0, not positive or negative

### positive numbers

greater than 0, 6, 89

### rational numbers

4/5, -2/3, 7.31, -5, ratio of 2 integers

### irrational numbers

sq root of 5, negative cube root of 11, pie

### integers

rational--2, -17, 2001,0--whole numbers and their opposites

### nonintegers

rational--3/4, 1 and 2/7, -4.63, fractions

irrational--sq root of 5, negative cube root of 11, involve sq roots, cube roots, ect.. of integers

### transcendental numbers

irrational--pie, cannot be expressed by roots of integers

### natural numbers

rational-integer, 2, 2001, positive integers or counting numbers

### digits

0, 1, 2, 3, 4, 5, 6, 7, 8, 9--numbers from which the numerals are made, rational-integer