Year 5 Autumn 2 Maths Challenge – Broad Heath Primary School

37 responses

Rir K. says:

22/11/2022 at 8:18 pm

BRONZE:
800 X 10 = 800
SILVER
She has missed
Max has missed 28 and 17
GOLD:
Factors of 12 are 1,2,3,4,6 and 12 and the factors of 24 are 1,2,3,4,6,8 and 12 and factors of 36 are 1,2,3,4,6,12,18 and 36

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Noor A. says:

22/11/2022 at 7:07 pm

Bronze
The answer is 8000 because 10X800=8000
Silver
The prime numbers that Max has missed are 1 and 9

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Mohamed E. says:

22/11/2022 at 6:26 pm

Bronze:
800 x 10 = 8000
Silver :
He missed Prime numbers 17 and 29.
Gold:
12- 1,2,3,6,12
Platinum:
11-7= 4

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Maddox B. says:

22/11/2022 at 5:49 pm

BRONZE:
Alex runs 800 meters
Whitney runs 10X further
800X10=8000
10X times further so you take away 800 so the final answer is:
7200
SILVER:
the prime numbers are
2,3,5,7,11,13,17,19,23,29
so the two missing numbers are 17 and 29
GOLD:
factors of 12
1 x 12 = 12.
2 x 6 = 12.
3 x 4 = 12.
4 x 3 = 12.
PLATINUM:
11-7=4

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Raiyan K. says:

21/11/2022 at 6:24 pm

Bronze
If Alex ran 800 meters and Whitney runs 10 times more than Alex she has ran 8000 ,I know this by 800 × 10 which equals 8000 ,whenever you times you will always move the digits one place to the left.This means that Whitney has ran 7200 meters more than Alex and I know this by adding 800 and 7200 together which will equal 8000.
Silver:
The missing prime numbers Max missed are,17 and 29
Gold:
This is another way to make arrays for 12 — — — — This example shows 4 × 3 or 3 × 4 – 12
Factors of 12 are:
1,12,2,6,3,4 – 1 × 12 , 2 × 6 , 3 × 4
Factors of 24 are:
1,24,2,12,3,8,4,6 – 1 × 24 , 2 × 12 , 3 × 8 , 4 × 6
Factors of 36 are:
1,36,2,18,3,12,4,9,6,
Platinum:
11 – 7 = 4 which is a squared number .
Squared up to 100 are:
1
4
9
16
25
36
49
64
81
100

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Seher A. says:

20/11/2022 at 6:46 pm

Bronze:
8000 I know this because 800X10=8000

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Meharunisa A. says:

20/11/2022 at 5:43 pm

BRONZE
8000
because I know that 800×10=8000.
———————————————————-
SILVER
The numbers that Max are missing are 17&27. I know this because they are a prime number
———————————————————-
GOLD
Factors of 12:
1,2,3,4,6&36 because you can divide any of those numbers.
———————————————————-
Factors of 24:
1,2,3,4,6,8&12
EXAMPLE:
24 divide by 2=12
———————————————————-
FACTORS of 36:
1,2,3,4,6,6,12,18& 36
EXAMPLE:
36 divide by 2=18

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Zahraa Y. says:

20/11/2022 at 5:28 pm

Bronze
Whitney ran 8000 meters however Whitney also ran 7200 more then Alex I can prove this by using my time table knowledge and 800 x 10=8000 I know this because you just have to move the digits 1 forward if we were dividing out answer would of been 800.
Silver
A prime number is a number that the only factors are 1 and itself an example is 7. 7’s factors are 1 and 7 which makes it a prime number and 18 is not a prime number which we call a Non-prime number you can do 2 x 9 which equals 18. But the answer for this is 17 and 29 it can’t be 28 because 13 x 2=28 and it can’t be 16 because 4 x 4=16 it can’t be 30 because 10 x 3=30 and it can’t be 18 because like I showed 2 x9=18
Gold
Here is another example of an array which shows 12(4 lots of 3 also known as 4 x 3=12)
. . . .
. . . .
. . . .

Above shows 4 x 3 or you can say 3 x 4 which they both equal 12
Factors of 12 are: 1,12,2,3,4 and 6
1 x12=12
2×6=12
3×4=12
Factors of 24 are: 1,24,2,3,4,6,8 and 12!
1 x24=24
2 x12=24
3 x 8=24
4 x 6=24
Factors of 36 are: 1,36,2,3,4,6,9 12 and 18!
1 x36=36
2×18=36
3×12=36
4 x 9=36
6 x 6=36
There is no 5’s in this because all of the numbers in the 5 times table either end in a 5 or a 0 for example 5 x 10=50 or even 5 x 5=25
Platinum
This can either be 11 – 7=4 or it can be 13 – 4 =9(11 and 13 are prime number and 4 and 9 is a square number)
Sorry that this came in late!

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Bakary C. says:

20/11/2022 at 5:18 pm

The question is eleven – seven= four
I found out that ten – one -hundred then subtracting seven from a prime number to make a one – digit number then I crossed off all of the answers with two -digit numbers the only prime numbers left were thirteen and eleven. I then did thirteen– seven= six, but six wasn’t a square number. Then, I did eleven – seven= four then I got my answer
the square numbers from one – One-hundred are
One
Four
Nine
Sixteen
Twenty-five
Thirty-six
Fourty-nine
Sixty-four
Eighth-one
One-hundred

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1. Bakary C. says:
  
  20/11/2022 at 5:23 pm
  
  Bronze
  1) Alex ran 7200m more . I know this because 800×1000=8000-800=7200.
  Silver
  2) The prime numbers are
  2,3,5,7,11,13,17,19,23,29 . A prime number is a number that only can times by 1 and itself.
  Gold
  3)Factors of twelve are:
  1×12 2×6 3×4 they all equal twelve.
  Factors of Twenty-four are:
  1×24 12×2 3×8 4×6 these are all equal to Twenty-four
  Factors of Thirty-six are:
  1×36,3×12 2×18 4×9 they are all equal to Thirty-six
  This is the other part
  
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Ammara K. says:

20/11/2022 at 2:50 pm

I have completed this challenge in my homework book.

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Elham S. says:

20/11/2022 at 2:29 pm

I have done it all in my homework book!

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Markuss B. says:

20/11/2022 at 2:17 pm

Silver
a prime number is a number that can only be divided by 1 and itself.
I did silver in my homework book.
Gold
I did it in my homework book.

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Aran K. says:

20/11/2022 at 2:17 pm

I did it in my homework book.

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Zahra D. says:

20/11/2022 at 1:55 pm

Gold
Another way of making arrays with 12 is this –
…
…
…
…
The factors of 12 are –
1
12
2
6
3
4
The factors of 24 are –
1
24
2
12
3
8
4
6
The factors of 36 are –
1
36
2
18
3
12
6
Platinum
11 – 7 = 4. 11 is a prime number and when you take 7 away from it, it equals 4 which is a square number.

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Ayaan M. says:

20/11/2022 at 1:32 pm

I completed and will hand in

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Karanbir B. says:

20/11/2022 at 12:59 pm

Bronze
Whitney runs 7200 meters further than Alex. I know this because 800X10=8000 and 8000-800=7200
Silver
3,5,7,11,13,17,19,23,29and31 are all prime numbers
So max missed 17 and 29

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Haroon K. says:

19/11/2022 at 4:31 pm

Bronze
Alex = 800m
Whitney = 800 x 10 = 8000

Silver
The prime numbers that are missing are 17 and 29.

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Ibrahim M. says:

19/11/2022 at 3:49 pm

Platinum :
1) The question is 11 – 7 = 4.
2) I found this out by writing the prime numbers from 10 – 100 and then subtracting 7 from the prime numbers to make a 1 – digit number. Then I crossed of all

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1. Ibrahim M. says:
  
  19/11/2022 at 3:58 pm
  
  Sorry, I accidentally posted my comment too early.
  Platinum :
  1) The question is 11 – 7 = 4.
  2) I found this out by writing the prime numbers from 10 – 100 and then subtracting 7 from the prime numbers to make a 1 – digit number. Then, I crossed off all of the answers with 2 -digit numbers. The only prime numbers left were 13 and 11. I then did 13 – 7 = 6, but 6 wasn’t a square number. Then, I did 11 – 7 = 4. Therefore, I got my answer.
  3) The square numbers from 1 – 100 are 1, 4, 9, 16, 25, 36, 49, 64, 81, and 100.
  
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Sarah A. says:

19/11/2022 at 1:31 pm

Bronze
1) Alex ran 7200m more . I know this because 800×1000=8000-800=7200.

Silver
1) 2,3,5,7,11,13,17,19,23,29 are square numbers.

Gold
1)
••••
••••
•••• 4×3=12

•••
•••
•••
••• 3×4=12
2) Factors of 12
1,12,2,3,4,6
Factors of 24
1,24,2,3,4,12
Factors of 36
1,36,2,3,4,6,9,12

Platinum
1) 11-7=4

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Khadija A. says:

19/11/2022 at 9:16 am

Brittny ran 8000
I know is because 10 times 80

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1. Khadija A. says:
  
  19/11/2022 at 9:17 am
  
  800
  
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Kirtan P. says:

18/11/2022 at 7:09 pm

I’ve completed it in my homework book.

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Elyas A. says:

18/11/2022 at 6:13 pm

Bronze
It is 8000 because 800×10=8000
Silver
The missing prime numbers are 17,29
Gold
Factors of 12
1,2,3,4,6
Factors of 24
1,2,3,4,6,8
Factors of 36
1,2,4,6,9,18
Platinum
11-7=4
13-4=9
The anzer are 11-7=4,13-4=9 because 4,9 are square numbers and 11,13 are prime numbers .

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Hudayifah A. says:

18/11/2022 at 5:54 pm

Bronze:
Whitney ran 7200 metres more than Alex because 800×10=8000 and 8000-800=7200
Silver:
Max missed 17 and 29 not 27 because 3x3x3=27 and 3×9=27
Gold:
Factors of 12:
1,12,2,6,3 and 4.
Platinum:
11-7=4
Did the working out and drawing in my homework book

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Maryam N. says:

18/11/2022 at 5:11 pm

Bronze
8000 because 10×800=8000
Silver
The prime numbers he missed was 27

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Tipian I. says:

18/11/2022 at 5:09 pm

Bronze:

Bronze:
It could be 900 because if 100 + 800 = 900
Then the answer is 900.
Silver:
17 and 29 because you can’t have any factors to times by to get that number (what I’m saying is ,the only factors are 1 and itself).
Gold:
The factors of 12 are :
1,12,2,3,4 and 6.
The factors of 24 are:
1,24,12,2,3,4,6 and 8.
The factors of 36 are :
1,36,2,3,4 and 12

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Kamil N. says:

18/11/2022 at 4:40 pm

Bronze
Whitney runs 7200 meters further than Alex
Silver
Amir missed the number 17 and 29.

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Tyson T. says:

18/11/2022 at 4:14 pm

Bronze
Alex ran 7200 more meters
Silver
She has missed 17 and 29

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Tana I. says:

17/11/2022 at 6:30 pm

Bronze
800×10=1000
Whitney runs 1000m
Silver
I think max Miss out 15 and 27.

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Mohammed W. says:

06/11/2022 at 2:06 pm

I will hand my work to the teacher.

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Hanfaa N. says:

04/11/2022 at 11:30 pm

Bronze
8000
I know this because 800 X 10 = 8000
Silver
27 and 17
Gold
factors of 12
1,2,3,4,36 and 6 because you can divide twelve by any of those numbers.
factors of 24
1,2,3,4,6,8, and 12 because you can divide these numbers by 24 like 2 divided by 12 = 24.
factors of 36
1, 2, 3, 4, 6, 9, 12, 18, and 36!!
Example:
12 divided by 3 = 36
Platinum
13-7=6
11-7=4
This is all I could do because if you use a prime number and minus it by seven and it becomes something for example 13-7=6 there is entirely no way of how to put a prime number then minus it into a squared number.

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1. Hanfaa N. says:
  
  18/11/2022 at 7:06 pm
  
  Sorry you actually can because 2 squared equals 4.
  
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