# Calculator parenthesis

This calculator makes basic and advanced operations with real, natural, integers, and rational and irrational numbers. It also shows detailed step-by-step information about the calculation procedure. Solve problems with two, three, or more real numbers in one expression. Add, subtract, and multiply real numbers step-by-step. This calculator performs addition, subtraction, multiplication, or division for calculations on positive or negative real numbers. This online real number calculator will help you understand how to add, subtract, multiply, or divide real numbers.

Real numbers are numbers that can be found on the number line. This includes 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 and complex numbers cannot be drawn in a number line but in a complex plane.

### sin(pi/2) * (1.1 + 2.2 + 3.3) = 6.6

### Calculation steps

- Ludolph's number pi; π ≈ 3.14159265
- Divide: 3.14159265 / 2 = 1.57079633
- sin(the result of step No. 2) = sin(1.57079633) = 1

We assume trigonometric angle argument in radians. - Add: 1.1 + 2.2 = 3.3
- Add: the result of step No. 4 + 3.3 = 3.3 + 3.3 = 6.6
- Multiple: the result of step No. 3 * the result of step No. 5 = 1 * 6.6 = 6.6

## Real numbers in word problems:

- Cupcakes 82074

Mom was baking dinner. A maximum of 20 cakes can fit on one tray. She baked more than 1 sheet but less than 7 sheets. How many cupcakes could Mom bake? - Samantha

Samantha took 72 pictures on her beach vacation. 3/4 of those pictures are on the beach. How many pictures from her vacation are on the beach? - Multiples

Find all multiples of 10 that are larger than 136 and smaller than 214. - Rolls

Mom every day buys six rolls. On Friday, it buys two times as much. How many rolls will be bought on Friday?

- Product

The result of the product of the numbers 0, 6, 6, 7, 7, 10 is: - Ice-creams

Becky and Sam make 6 ice-creams for their friends. On top of each ice-cream they sprinkle 1/3 of a packet of jelly. How many packets of jelly do they need? - Multiply 19

Multiply 12 × 5/8, and write the result in mixed and improper fractions. - Collecting clothes

Larry and Myra are collecting clothes for a clothing drive. Myra collected 2 1/2 times as many clothes as Larry did. If Larry collected 4 4/5 bags of clothes, how many bags of clothes did Myra collect? - Productivity 83336

The company's daily production was 240 products. How much did it increase if labor productivity increased by 25%?

- Shoes

Jim and Dora are collecting shoes for a yard sale. Dora collected 1/2 as many shoes as Jim did. Jim collected 3/7 of a bag of shoes. How many bags of shoes did Dora collect? - The recipe 3

The recipe for cookies with cream requires 1 2/6 cups of cream for 1 tub. How many cups of cream will you need for 4 tubs? - Jennifer

Jennifer has 10 pets. Two-fifths of the pets are cats, one-half are fish, and one-tenth are dogs. How many of each pet does she have? - Estimate and exact

A) estimate 0.34 x 0.063 by rounding both numbers to one significant figure b) work out the exact value of 0.34 x 0.063 compare answers to parts a) and b) - A pilot

A pilot flew 3 450 miles one way to a point of destination. How many miles did it take him to fly to and from the destination?

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