Friday, January 13, 2012

Practice 5 - Rounding off to the nearest thousand and estimation

(1) 7000 + 7000 = 1400 True/False
Why?

(2) 8000 - 6000 = 14 000 True/False
Why?

(3) 473 075 when rounded off to the nearest thousand is 473 100 True/False
Why?

Can you explain why the above are true or false? Comment.




21 comments:

  1. False false and false when 7000+7000=14000 not 1400 missed out one zero
    8000 MINUS 6000 not add so the answer should be 2000 it was rounded off to the nearest hundred not nearest thousand so the answer should be 473000

    ReplyDelete
  2. All false ,
    Q1's answer missed out a zero
    Q2's answer is a MINUS , NOT a add , the answer will be correct if they said to ADD
    Q3's answer is rounded off to hundreds , not thousands so it's wrong

    ReplyDelete
  3. 1st question is wrong.7000+7000=14000.itis missing a zero.2nd questions also false.8000-6000=2000.it is minus not addition.3rd question is false.it is round off to the nearest thousand not nearest hundred


    jayden ting

    ReplyDelete
  4. Question 1 is false. The value adds up to 14000 and not 1400. Question 2 is false. The difference is 2000. 14000 means adding up the two numbers and not subtraction. Question 3 is false. It should be 473000. the hundreds has a zero value.

    ReplyDelete
  5. All the questions is wrong/false. The first question is 7000+7000=14000 not 1400 because 1400 is one thousand four hundred. As for the second question, 8000-6000=14000, the answer should not be 14000 because it should be MINUS but not PLUS. And for the last question, 473075 rounded of to the nearest thousand should be 470000 not 473100 because 473100 is rounded of to the nearest hundred.

    ReplyDelete
  6. All the questions are false.The first question's answer is 14000,not 1400.The second question's answer is 2000,not 14000.If the question is 8000+6000, the answer is 14000.The last question,
    473075 rounded of to the nearest thousand is 473000,not 473100.If the question is round off to the nearest hundred, then the answer is 473100

    -Darryl Chan-

    ReplyDelete
  7. The first question is false 7000+7000 is 14000 not 1400. The second question is false it should be minus not addition the answer should be 2000.The third question is false it is asking for the nearest thousand not the nearest hundred the answer must be 473 000.

    ReplyDelete
  8. All the questions are false.
    Q1. The answer should be 14000 and not 1400 because the 7000 + 7000 is 14000
    Q2.The answer would be correct if it was a Pluse but the question is a Minus.
    Q3.If the answer is rounded off to the nearest hundred it would be correct but if it is rounded off to the nearest thousand it is wrong.

    ReplyDelete
  9. All are wrong.
    Q1. the answer should be 14000 not 1400.
    Q2.if it is plus it should be correct but it is minus and the answer should 2000.
    Q3.the answer should be 473 000 because the it is not more than 50

    ReplyDelete
  10. all are false
    1 the ans is 14000, it missed a 0
    2 the ans should be 2000 if it was an + it would have been correct
    3 473075 should be rounded of to thousands not hundreds
    ~ Misha

    ReplyDelete
  11. All are incorret.
    1)The answer should be 14000.
    2)The question asked for plus not minus.So therfore the answer is wrong.The correct answer is 2000.
    3)The answer is suppose to be 47 000 as the question asked to round off to the thousands.

    Alisha

    ReplyDelete
  12. All answers are wrong.
    1 There are 3 0s in thousands therefore the answer should be 14000.
    2 The question is about subtraction not addition therfore the answer should be 2000.
    3 The question asks you to to round off to the thousands so its suppose to be 47000.

    ReplyDelete
  13. All the answers are wrong...
    1.The answer should be 14000.
    2.If the question is - not + therefore the answer is incorrect.
    3.The answer is rounded off to the hundreds not the thousands so it is wrong

    ReplyDelete
  14. 1 False. It is not 1400 because it is 14000
    2 False. It is minus not plus.
    3 False. The answer given was rounded off to the nearest hundred not thousand.

    ReplyDelete
  15. 1: false the answer is 14000 instead of 1400.

    ReplyDelete
  16. 2:false it is 2000 instead of 14000

    ReplyDelete
  17. 3:false the answer is 473000 instead of 473100

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  18. #1 false. 7000 plus 7000 is 14000 as the answer stated there is 1400 wich is the sum of 700 plus 700 (the plus button on the laptop is broken)

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  19. #2 false. it says 8000-6000 not plus therefore the answer should not be 14000

    ReplyDelete
  20. #3 false. it says rounded of to the nearest THOUSAND not hundred

    ReplyDelete
  21. 1) False. 7000+7000=14000 not 1400
    2) False. 8000-6000=2000 not 14000,if the answer is 14000,the question will be 8000+6000
    3) False. 473 075 when rounded of to the nearest thousand is 473 000 not 473 100 because if the answer is 473 100,it is rounded of to the nearest hundred.

    ReplyDelete