Free math calculators with step-by-step explanations to solve problems for algebra, calculus, physics, trigonometry, statics, and more.

Aug 1, 2025 · Long addition calculator with work. Do long addition and see the work for adding numbers, decimal numbers. Use long division to add multiple numbers and see the work.

This online calculator sums up entered numbers. Any symbol what is not a digit, for example, a space, a comma, a semicolon, etc, serves as a separator. It is useful when you need to sum up several …

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Who called me from this phone number? You May find out with a Reverse Phone Lookup. Enter a number to discover a name, address, and more details about a phone number owner.

Dec 14, 2025 · Type a phone number in the box below and click 'Search' to find out who is using that phone number.

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Free reverse phone lookup service that retrieves the name and other available information for phone numbers.

Who's calling? NumberGuru's reverse phone search directory uncovers landline & cell phone numbers. Find out more about the text message received, location, carrier, spam score & more.

Browse area code 515 phone numbers, prefixes and exchanges. The 515 area code serves Des Moines, Urbandale, Johnston, Ames, Gowrie, covering 90 ZIP codes in 19 counties.