The Tutors maths questions
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The Tutors maths questions
My son sat paper fourB of the Tutors series today and unusually got many of the maths questions wrong.I tried to explain them (with the help of the answers) and couldn't!
Can someone provide the explanations for the following questions please?
Question 75. 86 65 74 77 62 89 ?
Question 77. 44 35 27 20 ?
Question 78 23 25 31 24 39 23 ?
Question 79. 39 36 39 40 40 44 42 ?
My maths is usually reasonable but I could not solve these.
Can someone provide the explanations for the following questions please?
Question 75. 86 65 74 77 62 89 ?
Question 77. 44 35 27 20 ?
Question 78 23 25 31 24 39 23 ?
Question 79. 39 36 39 40 40 44 42 ?
My maths is usually reasonable but I could not solve these.
Barbara
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Hi Barbara,
The pattern here is not straightforward looking at the subsequent number,instead look at the pattern for each alternate number.
86 65 74 77 62 89
86 to 74=deduct 12
74 to 62=deduct 12
65 to 77=add 12
77 to 89=add 12
So next 2 numbers would be 50 and 101
Next question is similar,adding 8 for the first set then subtracting 1 for the second.
Third question,first set is adding 0,1,2,3 etc and second set is adding 4.
Hope this makes sense!!
Gloucestermum
The pattern here is not straightforward looking at the subsequent number,instead look at the pattern for each alternate number.
86 65 74 77 62 89
86 to 74=deduct 12
74 to 62=deduct 12
65 to 77=add 12
77 to 89=add 12
So next 2 numbers would be 50 and 101
Next question is similar,adding 8 for the first set then subtracting 1 for the second.
Third question,first set is adding 0,1,2,3 etc and second set is adding 4.
Hope this makes sense!!
Gloucestermum
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- Posts: 9235
- Joined: Wed Jan 11, 2006 8:10 pm
- Location: Buckinghamshire
maths question
Thankyou to everyone for these answers. I hope he doesn't get so many of this type in one exam again. It knocked his score down significantly. At least we can add it to the list of things to look out for.
Thanks again.
Thanks again.
Barbara
Just a quick extra tip that I taught my child.
Alternate number sequences have to have at least 6 terms to cater for a minimum of 2 lots of 3 pairs, whereas single number number sequences don't need to have tbis many terms and often have 5 or less.
If you see 6 terms of more get them to remember to check for alternative number sequences.
I have found this does work as a rule of thumb with for example NFER and can help them to speed up.
Alternate number sequences have to have at least 6 terms to cater for a minimum of 2 lots of 3 pairs, whereas single number number sequences don't need to have tbis many terms and often have 5 or less.
If you see 6 terms of more get them to remember to check for alternative number sequences.
I have found this does work as a rule of thumb with for example NFER and can help them to speed up.