Calculator Parenthesis
This calculator performs 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
- Multiply: the result of step No. 3 · the result of step No. 5 = 1 · 6.6 = 1 · 6.6 = 6.6
Real numbers in word problems:
- Stanka
Stanka knows 3 spread recipes. Her mom knows 10 times more spread recipes. How many recipes does her mom know? - Cupcake tray count
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 7, 3, 4, 2, 7, 0, 7 is: - Negative fraction 3
What is the product of 4/7 and −2/3? - Number 17
The number of boys in the class is k and the number of girls is m. How many euros will the class treasurer collect from them for a theatre performance if one ticket costs €4.25? - A sixth of a million
How much is 2/6 of $10,000,000? - Solve 29
Solve for x. 8=2x+4 - Bags of clothes
Nathan and John are collecting clothes for a clothing drive. John collected 1/10 as many clothes as Nathan did. If Nathan collected 1/3 of a bag of clothes, how many bags of clothes did John collect? - Finding Half of Ten
10 is 2 times more than what number? - Math review
How much is 20% of 30% of 150? - 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.
more math problems »
