Friday, July 10, 2015

Cash register

MATH
before we begin let's get in some relevant Hebrew vocabulary so that we are advancing our Hebraic education in every circumstance

Cash register
QuPaH קופה

If you can solve this problem you can work a cash register.
Customer buys something for $6.35 and he gives you $20.25
How do you give him the correct change?
Don't do it conventionally
$20.25-6.35
On a register it is the opposite. Start with 6.35-25=$6.10+(90)=$7+(3)=10+(10)=20
Answer $13.90
EXPLANATION 2
A cashier is able to gather the change in their hands as they calculate because they start with 6.35. Just subtract the 25¢cents from 35 now you got $6.10.... Now the equation begins. Pull 90¢ from drawer and you are at 7$, pull $3 from drawer and you are at $10, lastly pull $10 from drawer and you are at $20(we subtracted ¢25 earlier).... Giving the total of 13.90 without having to stop and use paper or a calculator.

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