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? asked in Science & MathematicsMathematics · 9 years ago

Cashier math: How do I calculate change in my head?

I'm a cashier, and am often shamed when a customer hands me cash, I hit the button to calculate change, and then he says, "Oh wait, I have a dime." I then have to take out my calculator, because I simply don't grasp how to do this kind of math in my head. (I can do this fine with pencil and paper.)

If you're the sort of person who can easily and confidently calculate change in their heads, please share your technique.

Please make sure to address the situation I get faced with-- I know the total, I know the change for the first amount the customer gave me (thanks to the computer), but then additional coins are added.

9 Answers

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  • Anonymous
    9 years ago
    Favorite Answer

    Add the value of the coin (say a dime) that the customer gives you now, to the change (shown by the machine) and give that sum to the customer.

    Example:

    Customer tendered $20.00

    Purchases by Customer Total $12.60

    Change (to be given to customner) shown by machine $7.40

    Customer says, "I have one dime. Please take it."

    Take that dime and add $0.10 to Change shown by machine $7.40

    Now $7.40 + $0.10 = $7.50

    Give the customer $7.50 and finish.

    Another Example

    Customer tendered $100.00

    Purchases by Customer Total $67.45

    Change shown by machine $32.55

    Customer says, "I have 45 cents. Please take it."

    Take that 45 cents and add to change shown by machine $32.55

    Now $32.55 + 45 cents = $33.00

    Give the Customer $33.00 and finish.

  • 9 years ago

    A customer will usually give you the "extra" change so they don't wind up with a lot more change from the transaction themselves. For example, the bill comes to a total of $5.27. If the customer gives you $6.00, they'll have $.73 change coming to add to the change already in their pocket. They may not have exactly 27 cents to go with the $5 in currency, and not want 73 cents more in their pocket, so they may give you two quarters or $.50 to cover the $.27 over $5. You then just count the difference between the $.27 and the $.50. I just go $.37 ( 10 cents ), $.47 ( another 10 cents ) and 3 pennies make the $.50 the customer gave you over the bill of $5.27. Their change is 23 cents. I had to learn to make change when I had a paper route at 12 years old. If some customers didn't think you could make change, they would try and screw you out of some money! I had a couple of people that were always trying that when I collected for the week. Just go by 10 cent increments up to the next highest dollar and then use the largest coins possible to make that total.

    Source(s): Personal experience.
  • Anonymous
    5 years ago

    I can relate to you because I am a college student also and beside working for my dad I do odd jobs to make extra money, like puppy sitting, dog walking, cashiering and tutoring. Some people are just ignorant and rude and I have learn to ignore them and I do so with a smile. Sometimes I tell them "sorry you feel that way about me, but I rather double check my math than give you the wrong change" and then I let them berate and vent - most walk away looking very stupid to me. Someone that is 40 should realize that someone that is 20 is learning about life and they are not setting good examples. If I've really had enough, I will say, "it's not easy being new at a job but I hope the next time you come in I'll be better, have a nice day sir/madam". Do not allow ignorance to make you want to quit your job, if you were a brain surgeon this person would still have found some reason to attempt to put you down - it's his need to feel better than you and he obviously was never young or had to learn anything. His mom must be proud she gave birth to an adult son fully loaded. Also, remember anytime you have to deal with the public you can expect to get pooped on - but remember not to behave like them, I have so much more respect for people who work in restaurants or other support jobs - and laugh because there are a lot of intelligent people working at such jobs.

  • 9 years ago

    I'm not a cashier, but when I head down to the mall I always calculate the correct change in my head.

    Lets say I buy a bag of chips for $3.45 and a pack of lollipops for $4.99 the total will be $8.44 but because $4.99 really = $5.00 I will add $3.45 and $5.00 together which = $8.45. Lets say the consumer gave $10, I would give $2.15 change. It's pretty simple, I actually calculate it in my head using a clock method. (When you look at the and Its 2.15 thers still another 45 minutes to go until its 3pm)

    Good luck.

  • 6 years ago

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    RE:

    Cashier math: How do I calculate change in my head?

    I'm a cashier, and am often shamed when a customer hands me cash, I hit the button to calculate change, and then he says, "Oh wait, I have a dime." I then have to take out my calculator, because I simply don't grasp how to do this kind of math in my head. (I can do this fine with...

    Source(s): cashier math calculate change head: https://tinyurl.im/TcVZy
  • Anonymous
    9 years ago

    Lets say that the total is $1.13.

    The customer could hand you

    1. a "$5.00 bill" to cover the "dollar"

    and

    2. a "quarter" to cover the "13 cents."

    The quarter was used to minimize the amount of coins in the customer's pocket, and not break another dollar bill.

    Round up the 13 cents to the nearest dime (it would be 20 cents). This would be 7 cents more than it is. Then give 5 cents change from the quarter, plus the 7 cents (that would be 12 cents).

    See, making change is simple.

  • Anonymous
    5 years ago

    For the best answers, search on this site https://shorturl.im/ayjnZ

    If you are going to work dealing with people get used to it. Most people are not rude and will be nice but you will encounter rude people occasionally. Grow some tougher skin and just shrug it off when someone is rude. I know you were probably nervous but I really hope you can do simple math like this in your head. Counting money is easy... ..

  • S
    Lv 6
    9 years ago

    I do it this way. Say the stuff he buys is $7.35 (total, with tax), and he hands you a ten dollar bill, and then a dime and a nickel. So you need to hand him back $10.15, this way:

    + merchandise, that's $7.35

    + one dollar bill makes $8.35, another dollar makes $9.35

    + then a quarter makes $9.60, a quarter again makes $9.90, and the last quarter makes $10.15.

    You need to be able to add a penny, nickle, dime, and quarter to any amount.

  • 6 years ago

    Rule: Whatever the customer gives you, give it back to them.

    Example:

    Cost: $5.60

    Customer gives: $10

    *You press button and register automatically tells you to give back $4.40

    *Customer then gives additional amount of 2 quarters and 1 dime

    *Instead of panicking, you remember the rule: Whatever the customer gives you, give it back to them.

    *So you quickly and calmly look back at the register screen and understand $4.40(original change)+ .60 cents= $5 and give them a $5 bill (not the 4.40 and 6 dimes! lol!)

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