Calculation without a calculator
December 14, 2017 12:44am CST
How well can you do a math without a help of a calculator? When I was still a student, I remember doing the math without a calculator. We were prohibited from using it. The purpose was to train students to be able to calculate figures quickly relying on their mathematical skill. When we are at work, none can be done without the help of calculators. Computers are now equipped with formula that we require. When you look at the bill notes, do you trust the total calculated by the seller? Or will you recheck the calculation?
9 people like this
• Bunbury, Australia
Mostly I have a good idea of the total should be. Most people seem to use calculators or tills where I shop so there isn't too much danger of making a mistake. We never had calculators at school. They only came into common use after I left school.
Try to go to the market and observe small vendors. They're fast in giving you the total amount of what you buy and they're also fast in calculating the change of money. That's what we call a practical math. That's an applied mathematics. Have you not asked how they did it? I was once a mathematics teacher and I taught my students how to simplify or to do the short cut computation by giving them the practical technique.