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Mr Brewin's Year 7141 comments to Mr Brewin’s Year 7 |
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hi
I’m stuck on question 5b for homework. Please can someone help?
Don’t worry i have it now.
Well done Helena; that didn’t take long
on qu 6 for the homework is this how you work out the answer eg
12 divide (cant find divide sign) 12 div 1/5 do you multiply the denominator (5) by the whole number (12) and then multiply that by one to get 60
e.g 12×5=60×1=60
hope its right thnks
OH AND FOR QU 5 im slightly stuck on b and c coz im not really sure how to change it into a mixed number and… well its just a bit confusing
Hi Kate,
I need a page number really so I can see what you are doing.
However, what you said for 6 sounds OK: to divide by a fraction, you multiply by the fraction turned upside-down.
Mrs T
hi
Hi I am a little worried for when are test is coming up for converting fractions. Is it on the Friday the 25th of November or the 28th of November
It’s on the Monday next week Hannah, i hope that helps. Are you stuck on anything for it?
Thanks Helelna. That has really helped me.
No problem
For the maths revision, i don’t really understand how you change fractions to decimals and decimals to fractions.
Hi Helena,
To change a fraction into a decimal, divide the top number by the bottom one.
eg 3/8 is 3 divided by 8
Write the 3 as 3.00000 so you have something to hang the remainders on when you divide.
To turn a decimal into a fraction, start by putting it over 1, then keep multiplying top and bottom by 10 until there isn’t a decimal any more. Simplify the fraction if possible.
eg 0.65 = 0.65/1 = 6.5/10 = 65/100
now divide top and bottom by 5 to simplify
gives 13/20
Does that help? If not, ask your sister as she should be able to do this
Mrs T
Thanks Mrs Tibble, my worry is over. My sister is at a party and my mum has forgotten how to do this. But I know the trick now
Well now you can teach mum then! That will be a good test of whether you’ve really understood it
Good idea
I still don’t understand how you could divide 3 by 8.
Hi sir, when is our fractions test again????? Help!!
Hi Helena,
If you imagine sharing 3 bars of chocolate between 8 people you’ll realise that they are only going to get a fraction each, so your decimal will start with 0.
Set it out like a proper division question:
how many 8′s in 3?
none, remainder 3
put the decimal point and hang your remainder on the first zero
how many 8s in 30?
3 remainder 6
hang the 6 on the next 0
how many 8s in 60?
7 remainder 4
hang the 4 on the next 0
how many 8s in 40?
5 exactly
so the answer is 0.375
Ask Olivia to go through it with you (it will be good for her
)
Have fun,
Mrs T
Hi Betty,
Read above – looks like it’s tomorrow!
Mrs T
Thank-you Mrs Tibble!
I don’t understand how you would change 0.66666666 etc.. to a percentage?
x it by 100
Thank-you Mrs Tibble
Mrs Tibble, I am stuck on how to find the sequence: 2,5,10 and 17 for the term to term rule. I know it is increasing by adding an odd number but I don’t know how to change it into a term rule.
Hi Vanessa,
When the terms aren’t going up by the same number each time, then it isn’t a simple rule so you need to think of other things you can do with numbers besides adding or subtracting something.
The differences are getting bigger each time, so can you think of any number sequences you already know that do this?
Write each number in the sequence with its position number so that you can see what’s happening more easily (taking the sequence further will give you the biggest clue)
Good luck!
Mrs T
Hello i am stuck for the question 4 for the sequence 2,5,10,17 i have read what mrs Tibble said but i don’t really understand and my dad has tired to help me but can’t seem to crack it
could you help me please
Hi Jana,
Write out the first 10 terms of the sequence and think of numbers near them that are special for the same reason. Then you’ll have cracked it (get Anya onto it
)
Mrs T
i couldnt do the last question i am not sure if i should leave it
Hi Jana,
Is the last one the one you have asked me about?
Did you write out the first 10 terms?
If not, do that then come back to me.
Mrs t
ok thank you Mrs Tibble
Did we get any maths homework on Friday?
No idea, Helena. You were in the lesson, I wasn’t!
Ok Thanks Mrs Tibble. I’ll check in my planner.
Can we cover our maths book so we dont take our english book to the lesson instead?
Hi Biba,
That’s a good idea. The English books are a different blue, have lines not squares and ‘English’ written on the front, but if that’s not enough for you, please cover your book
Mrs T
PS Have you ever taken your maths book to English?
I have never taken my maths book to English but I feel as if I’m going to!!
In the homework (p51 question 5b) how do you write the position-to-term rule? Would it just be 3n+5 or do you describe it?
Thank you Biba
Hi Biba,
The book tells you how to write your answer – in words for b and using algebra for c.
What you have written above is correct for part c.
To turn it to words they want something like: multiply the position number by 3, then add 5.
Is that OK now?
Mrs T