Tuesday, October 25, 2011

Subtracting rational numbers

Create a subtraction word problem whose answer is -2 1/3. No one can repeat the same problem. But feel free to comment on each others problems.

71 comments:

  1. Anabelle and mia go to a store. Anabelle buys chips for $2. Then she gets a big bottle of arizona for mia which costs $4.33. How much money did Anabelle spend in all?

    2 + (-4.33)= -2.33

    Ana 723 I know 1/3 is repeating and the closest estimate is .33 so thsi is my answer !!!!!!!! first one

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  2. Daniella goes to the movies and when she pays for the tickets she gets $2.11 back. Then she uses all her change plus $4.44 for popcorn and a drink. Solve the equation 2.11 + (-4.44) to find out how much money she lost.
    2.11 + (-4.44)=-2.33

    __.33 = __ 1/3

    ~Melanie Nektalov 724.....second one lol ANAA! :)

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  3. Also i want to comment on what Ana said. Your answer was awesome. Your answer helped me! i was lost until i actually read ur answer lol! :)

    ~MELANIE NEKTALOV
    724

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  4. Amy and Robert went to the school bake sale. The cookies were for $6.55. The cupcakes were for $8.88. Amy and Robert shared their money so how much money did they spend all together?

    -8.88 + 6.55 = -2.33
    How I know that -2 1/3 = -2.33 is by dividing 1 by 3 which equals 0.33... -2 stays the same so -2 1/3 = -2.33.

    ~Vita Davydov 724.

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  6. Jake and Amir go to the movies. Amir has $17.00 to spend (He has more money but he wont spend it). Jake is really hungry, and wants popcorn, nachos, and candy which in total is $9.00. Amir was also hungry, so he bought 2 packs of candy and a drink which was $5.66. After the movie Jake gets hungry and buys a burger which costs $4.66 with Amir's money. How much money does Amir have afterwards?

    17.00 - 9.00 - 5.66 - 4.66
    8.00 - 5.66 - 4.66
    2.33 - 4.66
    -2.33

    P.S. I rounded -2 1/3 to 2.33

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  7. I would like to comment on Vita's answer, I really like the way you answered your problem and explained how you got your answer. I understood you clearly and you made it sound very easy to understand. Great job!

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  8. Interesting....

    Ana - how much money did you spend altogether?

    Same question for Vita..

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  10. Jack and Jill went to the store to buy comic books. Jack and Jill all together had $6.24. Jack and Jill bought one comic each. One comic was $4.12. The other comic was 4.45. How much money is needed to buy the two ocmics.

    $4.12 + $4.45= $8.57
    $6.24 - $8.57= $-2.33 which as a fraction=-2 4/12

    -milana aminova 724

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  11. Mr. Met wanted to buy some baseballs. He only had $20 in the bank.If he were to buy one tub of 20 baseballs at the price of $22.33 after tax, how much money did he have left?

    Answer: -$2 1/3 dollars, which is equivalent to -2.33

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  12. Jack and Jill went to pool and dived into 3 feet. After 1 hour, they went 5 4/12 below 3 feet.
    3 feet - 5 4/12= -2 4/12
    -2 4/12= -2 1/3

    -Milana Aminova 724

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  14. A frog once got trapped in a well.
    It started at 0 feet which was the top of the water level. In the day the frog went up 2 feet. At night, it fell asleep and it went down 4 1/3 feet.
    How much feet was the frog at in the night.
    2-4 1/3=-2 1/3

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  15. Vita - love the question but I need you to double check the sign.

    Kanak - Excellent!

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  17. The answer to my question is $6.33.....srry everyone

    THIS IS ANSWER...This is for MS.NORWICH

    ANA 723

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  18. Bob goes to the beach. He sees a turtle at the bottom of the hole and decides to throw rocks at its shell. The turtle is 8 feet below the point where the rocks leave Bob's hand. The point where the rocks leave Bob's hand is 5 2/3 feet above the ground. If ground level is 0 feet, how far above or below ground level is the turtle?

    Answer - 5 2/3 - 8 = -2 1/3

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  19. I would like to make a new post because I don't like my other one that I have made above....

    Amy and Robert went to the same swim team. They were like best buddies. One day they both had to jump on a diving board. Amy jumped 6 1/3 feet, but Robert jumped 8 2/3 feet below sea level. How much more feet did Robert jump than Amy?

    6 1/3 + (-8 2/3) = -2 1/3 feet.

    ~Vita Davydov 724.

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  20. Vita.. Since Robert actually jumped 2 1/3 feet more than Amy the answer would be positive if it is worded that way. You would have to change your questions to say what is the difference between the depth of Amy's jump and the depth of Robert's jump.

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  21. I would just like to comment on what Ana said.... i do not drink that much arizona...thats just scary.
    I would also like to comment on andrew's problem I don't really get what the rock had to do with the problem.

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  22. Me and Andy went to the store. We wanted to get chips. So we had 1 dollar to spend. Each bag costs a dollar. Me and Andy bothe got I bag each. Then we got some mints that are worth $1.33. So we put the money we couldn't pay for on our tab. So then we were down $2.33.

    1-2-1.33= -2.33

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  23. At then end of my comment, the question should be, What is the difference between the depth of Amy's jump and Robert's jump? Sorry!!

    ~Vita Davydov 724

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  25. Margaret went swimming on Sunday. She went down 4 2/3 feet. Then, after 5 minutes, she went down 6 1/3 feet in all. How many feet did she go down?

    Solution:
    4 2/3-6 1/3=-2 1/3

    -Alice 723

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  26. I would like to comment on Milana's post. I was a bit confused about what I had to do, but when I read hers, I understood it much better. Her post is easy to understand.

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  27. Coco went to Walmart to get almond extract and sugar for her birthday cake recipe. The recipe says that you need to add 15 2/3 tablespoons of sugar and 17 1/3 tablespoons of almond extract into the bowl. What is the difference between those 2 numbers?

    15 2/3- 17 1/3= -2 1/3 or -2.33.

    (This is Denise- weird username)

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  28. Mia the rock was the entire point of my problem because Bob would have nothing to throw at the turtle (unless he found something else to throw but that's not the point)

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  29. Mrs. Norwich, could you tell me if my problem is good? Does it need improving?

    -Alice 723

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  31. I like how Vita made her example really clear by using a swimming team as an example and she also talked about the sea levels so we can understand the way she gets her fractions.

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  32. Oh, about my problem, I said their total amount; I meant each person's total amount: I had 124 bars total, royal had 124 bars total, and Yash had 124 bars total.

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  33. I like Denise's comment about Coco and the birthday recipe. I don't think she should make 2 1/3 the decimal 2.33, though, because 2.33 is just an approximation for 2 1/3. Overall, I liked her word problem a lot.

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  34. Alice...Inorder to be a subtraction problem you should change the question so that Margaret starts at 4 2/3 feet above the ground and then dives down 6 1/3 feet into the water. How deep does she dive?

    Nikhil...Your problem made me laugh. Be careful though. I am not sure how they can end up with a negative amount of gold. You might want to change it to say that they now owe the bank 2 1/3 bars.

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  35. Here is my revised word problem:
    Margaret goes swimming on Sunday. When she gets there, she gets on a diving board 4 2/3 feet from the ground. She dives 6 1/3 feet into the water. How many feet underwater did she go down?

    Solution:
    4 2/3-6 1/3=-2 1/3

    -Alice 723

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  37. Nikhil the ant climbed 3 millimeters above Earth's surface. Next, Roman the germ infected Nikhil which led Nikhil to fall 5 1/3 millimeters. What was the final height Nikhil the ant ended at?

    Solution:

    3 - (5 1/3) = 3 + (-5 1/3) = -2 1/3

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  38. thankyou alice fr commenting on my post

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  40. A elevator went up 6 floors. It then went down 8 floors. Then it was going down one more floor but broke down 1/3 of the way
    6 - 8 = -2
    -2 + -1/3 = -2 1/3

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  41. Love it!!! Nickie and Royal your questions are great!

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  42. hahahaha royal i like your example :)its easy to understand and its fun lol

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  43. Same with me Melanie. Royal, when I read it, it was extremely funny. Short and simple, nice job!! ;)

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  44. This guy named spine likes chickens and he is one weird guy. To get the chickens that he wanted He had to take an elevator Up three flights to get to a special floor.He then saw a Door that said "Chicken Store" so he went in side and there was stairs. He took the stairs down 5 1/3 to come upon this secret floor which no body has ever been . There's the chicken store said SPINE!!!!!!
    2 - 5 1/3 = 2 1/3

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  45. royals answer was very funny to read especially when he was talking about the classmates. it was easy to understand and simple to the point

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  46. New one: Perry just went scuba diving in the ocean. He jumped from a small hill 37 feet in the air. When he dived, he dived 39 feet and 4 inches (1/3 of a foot). When got to 39 and 1/3 feet from where he jumped, he was eaten by a shark in one gulp. At what elevation was he eaten by the shark?

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  47. Royal, that example wasn't very funny. :-l

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  48. edit: Perry jumped from a helicopter ( almost like sky diving). Not from a hill.

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  49. Sorry forgot to answer: 37- 39= (-2) -2-1/3=(-2 and 1/3)

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  50. I would like to comment on Royal's answer, I like how you wrote in two steps and the problem you created was easy to understand. Great Job!

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  51. Daniel S, I is no gets

    Your answer's wrong and your question's wrong too.

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  52. Ava goes to the bakery and buys a drink for a $1. Then Ona asks her to buy a cake for her parents. Ava says yes. She buys the cake for $3.33. How much does Ava spend in all?
    $1 = (-$3.33) = -2.33
    I understand that 1/3 in a repeating decimal but this is my answer!

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  53. Amy is digging underground. Her shovel is one foot above ground.Then, she brings her shovel down 3 1/3 feet down. How deep did her shovel go?1-3 1/3= -2 1/3

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  54. Andrew how is it wrong?
    HELP THEN !!!!
    or anybody else

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  55. Daniel, your word problem is wrong because Spine goes up 3 floors and then goes down 5 1/3 floors. It should then be 3-5 1/3=- 2 1/3.

    Alice 723

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  56. Daniel...your question looks fine to me but Alice is right your solution should be 3 - 5 1/3 = -2 1/3

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  57. Oh..I get Andrew's problem now
    Sorry about that I'm not a fast learner

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  58. A random person who's name is unknown ran 13 miles. He had to go to a diner for a random dinner. he had to go 15 2/3 miles back. What place did end up being at?
    13-15 2/3=-2 1/3

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  59. o OK thank you Alice and Mrs. Norwich

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  60. I really enjoyed reading Yash's comment because he used numbers which had a higher value yet subtracted them to end at the value of negative two and one third.

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  61. Sammy had $100 to spend at a party. at his party were him and his 2 friends. with the $100, he bough chips, cookies, soda, etc. his friends favorite item was cookies. And Sammy had bought 7 packs. by the time the cookies were served, Sammy's friend Andy had to leave. SO it was only Sammy and Randy. They decided to save Andy's part of the cookies, to give him at school the next day. So, to divide 7 packs by 3 people, everyone got 2 1/3, which 4 2/3 was eaten. So 2 1/3 was left.
    7-4 2/3=2 1/3.

    Sorry for the late response. My internet wasn't working. :D

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  62. i would like to comment on yashs... post
    its nice and simple
    by the way i would to bee the random person eating a random dinner and then runnning back!!!

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