# 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? - The sum 10

The sum of three decimals are 938.629. Two of them are 456.54 and 392.69. Find the third one. - ZOO 2

Valerie bought tickets to the zoo for the family. She bought three adult tickets for $9.50 each and two children's tickets for $4.50 each. How much did the tickets cost Valerie in all? - Necklaces

Mohammad sells beaded necklaces. Each large necklace sells for $4.50 and each small necklace sells for $4.10. How much will he earn from selling 5 large necklaces and 4 small necklaces? - Chose

Chose Juan bought three pieces of watermelon. If the weights of the three watermelons are 2.2103 kilograms, 3.0214 kilograms, and 2.6682 kilograms how many kilograms of watermelons did Chose Juan buy? - Items

Items Acosts 675.35 while item B costs 1605.25. by how much more was the cost of item B than item A. If item A and B will be purchased, how much would are pay? - Josh works

Josh works mowing lawns and babysitting. He earns $7.20 an hour for mowing and $6.80 an hour for babysitting. How much will he earn for 1 our of mowing and 6 hours of babysitting? - 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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