Calculators help us by giving us the answers to problems we don't understand or know.
http://www.financialcalculators.com/ is a website with all the financial calculators you could ever think of. These calculators can help you budget and manage your finances.
to help you in math
Any special someone can find investment calculators across the world wide web. A website known as Bankrate has not only investment calculators, but also credit card, mortgage, and savings calculators.
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45.98.. Calculators help
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There are plenty of mortgage calculators online. Most are free and can help you save money on your mortgage. For example, check out "www.mortgagecalculator.org".
Yes, magnets are commonly used in calculators to help hold batteries in place or to secure the calculator cover. Magnets can also be used in certain types of stylus pens for touchscreen calculators.
You can find online retirement calculators at moneycentral.msn.com/retire/planner.aspx and www.bloomberg.com/invest/calculators/retire.html. Fool.com and Vanguard offer free retirement calculators. These can help calculate how much you'll have at retirement.
Pencils, pens, calculators, supercomputers, logic
Lights telephones calculators and radios