Revision – Year 7 to 10

Responses

  1. There are a couple of slip up that you should know about…

    Year 9
    - not all of the questions are non calc
    - the question on cones should not have been included.

  2. Hey Mr. Williams! Im really confused about the whole adding and subracting fractions thing :( Can you give me some pages in the book to help me understand it? Thanks :)

  3. Dear Mr W,
    We dint understand q11 in the moc exam and i have to try and expalin itin class.
    SOS.
    x

  4. Thank you for the practise exam paper. I am going to do it over the holidays!!!!!

  5. Maddie,

    To be able to add or subtract fractions you need to have the same number on the bottom. Try writing a list of possibles for each of the fractions you use.
    eg 1/2 = 2/4 = 3/6 etc
    Once you have two lists then pick the ones with the same numbers on the bottom and add them.

    There is a short cut; see if you can spot it- good luck

    MW

  6. Christabel,

    To multiply fractions you need to simplify and then top x top and bottom x bottom. To simplify try to divide a number on the top and a num,ber on the bottom by the same thing.

    eg

    3 x 4
    _ _
    8 9

    You can cancel the 4 and 8 because they cna both be divided by 4.

    You’ll get

    3 x 1
    - -
    2 9

    Now cancel the 3 and 9 by dividing by 3.

    MW

  7. Dora best of luck with the paper.

    MW

  8. dear mr w
    i didn’t understand the last 4 or 5 questions i also still don’t understand how you change a decimal into a fraction or percentage.please could you give me some pages in the text book and also another explanation?
    x
    lou

  9. Lou

    Changing a decimal into a fraction:

    eg 0.45 the 4 is the first decimal place and so represents tenths, in this case 4 tenths or 4/10.

    The 5 is the second decimal place and represents hundreths, so 5/100.

    So we have 4/10 and 5/100. Adding these fractions together we get 45/100.

    Into a percentage:
    Percent means out of 100 so 45/100 is the same as 45%.

    I haven’t got the textbook with me and so I’ll have to give you a page reference tomorrow.

    I’ll need to have a look at the questions as well.

    MW

  10. Good luck in the exams everyone!

    MW

  11. Mr W,
    I am acctually dying, I dont understand queation 9 and 5 of the most recent moc exam. I just forgot how to subtact fractions. and i think i got my email address wrong because I just guessed it.

  12. Try this example on subtracting fractions from YouTube:

  13. thanks. :)
    are there going to be anymore practice exams avaliable over the holdiddays for people to do at home?
    x

  14. how would you do a question like this?

    6 and a half% converted to a fraction?

  15. Hi Feena,

    Start with what a percentage is – a fraction over 100.

    6 and a half % = 6.5 /100

    To get rid of the half, double the top and the bottom to form an equivalent fraction: 13/200.

    Once you get to this stage, you have a fraction which may or may not simplify. If it will, you cancel it down to its lowest terms (this one doesn’t).

    Hope that helps.

    Mrs Tibble

  16. thanks, also how do you work out liner equations with brackets?

    i am stuck with this one
    3(x-1) +4x=18.

  17. You need to multiply out the bracket first so that all the terms are separate.

    Remember the bracket means that both the x and the -1 have to be multiplied by 3:

    3x – 3 + 4x = 18

    Now tidy up the x terms and the number terms and you can then solve it to find the value of x.

    Don’t forget CHANGE SIDE, CHANGE SIGN!

    When you get your answer, go back to the beginning and see if it actually works in the equation. If it does, you’ve got it right; if it doesn’t, you’ve got it wrong!

    Have fun :-)

  18. hi,
    i really didn’t understand question 23 on the year 8 practice paper and how to work it out

  19. Frances,

    You can either
    a) make a table of values for x and y. Choose 3 different values of x within the range you are given. Then plot these and join up (hopefully in a straight line!),

    or
    b) use the equation y = mx + c to give you the y-intercept (c) and the gradient (m) and use these to draw the line.

    Hope this helps.

    Mr Riedel

  20. thanks
    also i was wondering if for the equation y=5x-2 would the gradient be 5 and the intercept be 2?
    thanks

  21. Frances,

    Gradient of 5 is correct, but the y-intercept would be -2.

    Mr Riedel

  22. HELLO EVERYONE

    JUST 2 LET U KNOW

    GOOD LUCK!!!!!

    AND REMEMBER REVISE

  23. Hi! just wondering, are there going to be any more mocks for yr8 to do? I have already done the non-calculater one.
    Thanks!

  24. Fatima,

    No, I’m afraid not. You’ll have to work using the revision exercises in your textbook for topics needing extra revision practice.

    Mr Riedel

  25. hi everyone
    im not sure what will be in the calculator exam?

  26. Frances,

    This is not an exhaustive list as I’m just thinking through what we’ve covered in Year 8 Mathematics, but it would include:

    Circles (using the pi button on your calculator)

    Formulae (where you might substitute numbers into a formula)

    Solving all the kinds of equations covered this year

    Calculations of speed, distance and time.

    Ratios

    Calculations using fractions, decimals and percentages.

    Hope this gives you at least a pointer.

    Remember that other things can be included that may not need a calculator too.

    Mr Riedel

  27. thats great thank you

  28. is the year 8 maths paper-maths 1 non calculator or calculator?
    thats the one tomorro

  29. Feena , the first onbe is always non calc.

    MW

  30. thanks.

  31. Mr.Williams were is the explanation about how do draw a pie chart?


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