# Real number calculator

## Result:

### 3*[8-(-1) + (-3)÷(-3)]^2 = 300

### Calculation steps

- Subtract: 8 - (-1) = 8 + 1 = 9
- Divide: -3 / (-3) = 1
- Add: the result of step No. 1 + the result of step No. 2 = 9 + 1 = 10
- Exponentiation: the result of step No. 3 ^ 2 = 10 ^ 2 = 100
- Multiple: 3 * the result of step No. 4 = 3 * 100 = 300

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.

#### Examples:

• addition of real numbers: -3/2 + pi/2• subtraction of real numbers: 32.14 - 67.32

• parenthesis: sin(pi/2) * (1.1+2.2+3.3)

• Complex example: Priority of operators and brackets: 3⋅[8−(−1) + (−3)÷(−3)]^2

## Real numbers in word problems:

- Square sides

If the square side increases by 28%, the square circumference increases by 11.2 meters. Find the length of the original square side. - The square

The square root of 25 times the square root of 81 is what number? - Square

Danov's father has a square of 65.25 milligram square of wire with a diagonal. How will the square be big when one mm weighs 7 mg? - Square

If we increase one side of square by its one-half then square perimeter increase by 10 cm. What is the side of the square? - Square area

Complete the table and then draw each square. Provide exact lengths. Describe any problems you have. Side Length Area Square 1 1 unit^{2}Square 2 2 units^{2}Square 3 4 units^{2} - Coordinates of square vertices

The ABCD square has the center S [−3, −2] and the vertex A [1, −3]. Find the coordinates of the other vertices of the square. - Folded square

ABCD is a square. The square is folded on the midpoint of AB and A is folded onto the fold, creating a shaded region. The perimiter of the shaded figure is 75. Find the area of square ABCD - Square

Calculate the side of a square with a diagonal measurement 10 cm. - Square prism

A square prism has a base with a length of 23 centimeters, what is the area in square centimeters of the base of the prism? - Square sides

If we enlarge the side of the square by a third, its circumference will be 20 cm larger than the original. What is the side of the square? - Square

If we increase side of the square, increase its area of 63%. What is the percentage we increase side of the square? - Squares

From a square of 12 dm perimeter is cut smaller square, whose side is the third side of the square. What is the area of the rest? - Rectangle vs square

One side of the rectangle is 1 cm shorter than the side of the square, the second side is 3 cm longer than the side of the square. Square and rectangle have the same content. Calculate the length of the sides of a square and a rectangle. - Cutting square

From a square with a side of 30 cm, we cut the circle with the highest possible diameter. How many percents of the square content is this circle? - Calculation

How much is sum of square root of six and the square root of 225? - Square Number

If to a square of integer number add 17, we get the square of the next integer number. What is the original number? - The square

Calculate the area and perimeter of a square with side a = 15 dm S =, O =

next math problems »