Monday, November 15, 2010

Math Reflective

Discuss how knowing how to "estimate" using mental math and percents can help you in the real world.

26 comments:

  1. Knowing how to estimate using mental math and percents can help you in the real world because you can estimate how much something is if it is on sale.

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  2. Waves 16
    By nowing how to estimate using mental can help you in the real world because you now how much to tip a watier if you were at a restaurant.

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  3. Waves 3


    You use mental math in the futrue because when you are paying for grocings

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  4. Waves 9
    Knowing how to estimate using mental math and percents can help you in the real world with tests, a job, if something is on sale, and if you need it to solve a math problem quickly.

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  5. By knowing how to estimate you could find out a lot of things in the real world. It could help you on a lot of things like knowing how much to tip a waiter, how much you are going to mostly pay if you are going to buy some clothes, or even in your job.

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  6. Waves20
    By knowing how to estimate using mental math in the real world, it could help you by knowing how much to tip a waiter or how much something is if it's on sale.

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  7. Wave 26
    You can use percents to round or estimate how much something is or how much it has a discount of.

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  8. knowing how to estemate using mental math it could help you in the real world beacuse,you could know how much your gona tip a waiter.

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  9. Waves11
    By knowing how to estimate using mental math and percents in the real world, it coud help you by knowing how much things are or how to tip a waiter.

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  10. Waves 18
    By knowing how to estimate in percents using mental math can help you in the real world because it could help you with something that's on sale or giving a tip to a waiter. :) <3

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  11. Wave 14
    You can use percents to round or estimate to find out how much to tip a waiter.

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  12. Waves24 To know how to estimate and use mental math in the real world could help you when you need to tip a waiter or maybe even know how much the price of something is on sale.

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  13. If you are at the store and something is $50 and 30% off, you can do 5x3, and know that it is $15 off. . . . -waves29

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  14. 28 waves


    Knowing estameting can help you when you want to buy video a new. or if you have to do the grocreys youcan use mental math and estimating to figuer out about what price it would be.

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  15. waves4
    They can help you in the real world because when there is a 75% off sale you can figure out the costs of those things.

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  16. Waves10
    knowing how to estimate would help you in the real world because it makes it easier to multiply, divide, or anything because it sort of becomes a landmark and it's really easy if it becomes a landmark. EX. if it's 158 times 609 you can estimate it and it becomes (200 or 160), (600 or 610). It makes it alot easier if you estimate by 100 or 1,000. With a 1 and with 2 or more 0

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  17. Waves17 Knowing how to estimate by using mental math and percents can help you in a real world bcause it helps you give some tips and money to a waiter.

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  18. waves 30
    by knowing how to estimate using mental math in the real world it could help you by helping you in
    percents and normal #s

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  19. waves#8
    Understanding how to estimate using mental math and percentages can help you to now how much something is when it is 40% off. Also to use it at a restaurant to tip a waiter.

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  20. waves19
    knowing how to estmate helps you a lot in the real world . it helps you sell stuff get a job.you could add easier .in a store it will be like the subtotal .

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  21. (Waves 25)To know how to estimate makes life easier especially in the world like adding money adding high amounts of money including taxes!

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  22. waves 7
    Estimation: helps with when you go to the market say somthing is $4.99 you can estimate that when you go to pay for it, it will be $5.00 with tax.

    Percent: Say you go shopping and the whole store is 50% of 50% of 100 is half so now you know that what ever you buy will be half off.

    Mental Math: Mental math can be used in any way epecialy when you go shopping. If you are fast at mth than you should be able to do mental math easy.

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  23. Waves15- you should now how to estimate becuse when you bye something you are going to need to know how much it is And how much money you will get back in your head. Ex- you have 20 dollars you thing cost 12 you have 20 how much change do you get back 8$dollars is your change Same whit prcent Your dress cost 10 dollars and 50% off how much is you dress 5 dollars.

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  24. Waves5
    Let’s say you bought nachos for 7.99 you would estimate and get 8.00. Here’s another one lets say you were at a clothing store and there was a coat you had to have and it was $70 and it 25% of so you would multiply bye 25 and 70 and you get such and such then you would subtract from your total

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  25. waves 31
    To estimate is the guess the the anwser of a math problem, and you wll use estimating at the grocery store. Lets say you had to pay $19.36, you could just use a $20.00 dollor bill. Percents also help by making some things more easy like 50% or 25% of a 1 dollor bill. So 50% out of 100 is 50, and 25% out of a 100 is 25%
    Its that easy.

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  26. Wave 22 I think because mental math can help you
    it haves easyer things because if you want to estimat get some money likeif some thing is
    $9.36 just pay $10.00 50% is fiftycent

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