# Calculator addition of real numbers

### -3 / 2 + pi/2 = 0.07079632679

### Calculation steps

- Divide: -3 / 2 = -1.5
- Ludolph's number pi; π ≈ 3.14159265
- Divide: 3.14159265 / 2 = 1.57079633
- Add: the result of step No. 1 + the result of step No. 3 = -1.5 + 1.57079633 = 0.07079633

Real numbers are numbers that can be found on the number line. This includes the natural numbers( 1,2,3 ...), integers (-3) rational (fractions) and irrational numbers (like √2 or π). Positive or negative, large or small, whole numbers or decimal numbers are all

**real numbers**. Imaginary numbers and complex numbers cannot be draw in number line, but in complex plane.

## Real numbers in word problems:

- Imaginary numbers

Find two imaginary numbers whose sum is a real number. How are the two imaginary numbers related? What is its sum? - Short cut

Imagine that you are going to a friend. That path has a length 120 meters. Then turn doprava and go other 630 meters and you are at a friend's. The question is how much the journey will be shorter if you go direct across the field?

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