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Add, subtract, multiply and divide decimal numbers with this calculator. You can use:

Positive or negative decimals

For negative numbers insert a leading negative or minus sign before your number, like this:
-45 or -356.5

Integers, decimals or scientific notation

For scientific notation use "e" notation like this:
-3.5e8 or 4.7E-9

Rounding. Specify whether you want to round your answer, and how many digits or decimal places to round to.

This calculator uses addition, subtraction, multiplication or division for calculations on positive or negative decimal numbers, integers, real numbers and whole numbers. Visit these calculators for calculations on decimal numbers and see the work: