Improved
In the old days – before calculators and computers – people used an archaic tool to calculate mathematical equations. It was called the “brain.” And while it’s rumored that humans still possess this rusty relic, it may need some serious dusting off if they want to take it out for a spin.
In this Application, you will learn that it is quite possible to add, subtract, multiple, and divide without the use of electronic aids. When you’ve finished reading, you may be tempted to toss your calculator in the trash – but we recommend that you don’t, as it is likely an app on your smartphone.
When teaching math, educators tend to do it by the book, demonstrating how tried-and-true methods should be used exclusively to solve mathematical equations. But did you know that there are sneaky shortcuts? Much to the chagrin of teachers, there are many clever little tricks and hacks you can use to circumvent the laborious tasks of multiplication and long division. Master these techniques and you can produce answers quicker than anything that has batteries.
Let’s look at a few “tricks” that will help you calculate math problems in your head and make your calculator (practically) obsolete.
