Year 4 Maths Challenge- Spring 1 2025 – Broad Heath Primary School

103 responses

Hannah B. says:

01/02/2025 at 8:44 pm

1. 820
2. 680
3.430

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Hannah B. says:

01/02/2025 at 8:43 pm

Bronze
I notice that 1 × 10 = 10 and 10 × 10 = 100 (100 × 100 = 1000)

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Huzaifa S. says:

01/02/2025 at 8:35 pm

(Bronze)

I noticed that Dexter is correct because when multiple with 10 then we have to always add a zero to the end.

820 times 10 = 820
68 times 10 = 680
43 times 10= 430

(Silver)

The length of the room is 600m and the width is 200m because 6 ✖️ 100=600 and 2 ✖️ 100 = 200m.

The function machine 15p ✖️£1.50 does not multiply by 100 because 15 ✖️ 100 does not equal to 1.50.

(Gold)

43 ✖️ 5= 215
36 ✖️ = 144
74 ✖️ 5 = 370

Jack is correct because 4 ✖️ 6= 24, 30 ✖️ 6 = 180, 200 ✖️ 6 =1200. So the answer is 1404. Sam did not add the exchanged number.

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1. Latifa A. says:
  
  11/02/2025 at 7:35 pm
  
  Bronze
  Dexter has just moved the ones column one space to the right because there was only one placeholders the first answer is 820 because 1 space moved to the right is 820.the second one Is 680 because they moved it one space to the right again which adds a placeholder and makes it 680.The last one is 430 because 1 placeholder to the right is 430 so the answer is 430.
  Silver
  So the perimeter of the plan is 2+2+6+6=16cm but in metres it is 16m and so the length is 12m and the width is 4m so all you have to do is just add the cm and add metres because 1 metre is 100cm.so 100x that is just in metres.
  Gold
  1st 43×5= 4×5=20 so 40×5=200 3×5=15 15+200=215 so the first question is 43×5 and the answer is 215. 2nd is 36×4= 3×4=12 so 30×4=120 6×4=24 120+24=144 so that question equals the same as 12×12 because 36 is also part of the 12timestables.3rd is 74×5= 7×5=35 so 70×5=350 4×5=20 350+20=370 so the answer to 74×5=370.now sam is the incorrect one because he forgot to add the exchange but Jack on the other hand has added the exchange so Jack is correct and Sam is incorrect the correct answer is 1404 but Sam incorrect one is 1204.
  
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Advika B. says:

01/02/2025 at 6:11 pm

Bronze
1. I noticed that you had to add a place holder because you are multiplying by 10.
82X10=820
68X10=680
43X10=430
Silver
1. 6cm X 2cm=8cm
Because it is a hundred times bigger you have to times 8 by 100 which equals 800 so the answer is 800.
2. The function machine in the middle because 15p X 100 does not equal £1.50.
Gold
1. Jack is correct i know this because, 24 +180 +1200 exactly equals 1404.

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Latifa A. says:

01/02/2025 at 5:17 pm

Bronze
The first one is 820 because he moved it to the right and all you have to do is add a place holder at the end . The second one Is 680 because same again you just move it one space to the right because your × it by one place holder but if it was 2 you have to move it 2 spaces to the left. The 3rd one is 430 because all you do is add a place holder and move it one space to the left .
Silver
The length is 6metres and the width is 2metres and the reason it is metres is because there is 100cm in one metre so 600cm is 6metres and 200cm is 3metres
The one that is incorrect is the 30p one because all they do is change the the p sign into a pound sign which is not correct the correct one are the 1st one the 2nd and the one which is wrong is the third the correct answer will be £3
Gold
The first one is 43×5 4×5=20so 40×3=120 3×5=15 15+120=135 the second one Is 36×4 3×4=12 so 4×30=120 6×4=24 120+24=144. The 3rd one is 74×5 7×5=35 so 5×70=350 4×5=20 20+350=370 .
Sam is incorrect because he forgot to add the exchange which made his answer wrong but Jack on the other hand did add the exchange which made his answer correct.
I HOPE I WIN THE MATHS CHALLENGE PRIZE!

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Neron O. says:

01/02/2025 at 4:34 pm

:BRONZE:
1.82*10 will equal 820 beacause 820 is ten times bigger than 82 so it will need a 0 at the end
2. 68*10 will equal 680 because 680 is ten times bigger than 68 so at the end the 68 will need a 0 at the end
3. 43*10 will equal 430 because 430 is ten times bigger than 43 so you will have to add a zero to the end

:SIVER: THE length of the room will be 12m beacause 6*2=12 and the calculation is showing 2*6 so the length of the room will be 12m.
the one that is not multiply by 100 is 15p beacause 15p*10 will equal 1.50£ because 10*15 will equal 150 so 15p*10 will equal 1.50£

:GOLD:
43*5=215
36*4=144
74*5=370

Jack is correct and sam is wrong because sam put 2 at the bottom but you can only put one .

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Waniya Z. says:

01/02/2025 at 2:48 pm

43 ✖️ 5= 215

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Waniya Z. says:

01/02/2025 at 2:38 pm

Gold
36 ✖️ 4 =144

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Naksh P. says:

01/02/2025 at 2:24 pm

Bronze
That when you multiply a 2 digit number by 10 all you have to do is add a 0.
82×10=820
68×10=680
43×10=430
Silver
The width of the room is 800m and length is 200m.
15×100 and 30×100 is the one that doesn’t multiply by a 100 to 1.50 and 3.00 bcs 15×100=15.00 and 30×100=30.00 and 3×100=3.00
Gold
43×5=215
36×4=144
74×5=370
Jack the correct answer bcs Sam forgot to add the 2 hundreds onto the hundreds coulmn and jack added all then extras.

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Maryam K. says:

01/02/2025 at 1:47 pm

I notice that all you need to do is move the numbers to left and put a place holder at the end. 82 times 10 = 820
68 times 10=680
43 times 10 = 430
SILVER
the length of the room is actually 600m. The width is actually 200m. I know this because the 100 times table is just like 1 times table.
The function machine which does not multiply by 100 is the middle one. this is because you cannot times 100 by 15 and 1.50
GOLD
the first answer is 35. The second answer is 36. The third answer is 55. Sam is correct because Jack said 6 times 2 = 14 and Sam said 6 times 2 is 12.

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Muhammed I. says:

01/02/2025 at 1:46 pm

Bronze
82×10=820
68×10=680
43×10=430
I notice that you add on a zero
the legs are width of the roof 16

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Nabira M. says:

01/02/2025 at 1:27 pm

Gold:
Jack is correct because first you have to do 6X4=24 3X0=0 THEN ADD ON a 2 2×1 and then add on a 2

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Waniya Z. says:

01/02/2025 at 12:59 pm

Gold
43 Times by five equals 25
36✖️4= 164
74 ✖️5=370
Both of them are wrong because In the ten Column you had to Add a 2 but Sam and Jack did not do it so both of them are wrong

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Waniya Z. says:

01/02/2025 at 12:52 pm

Bronze
I noticed that we have to add a ten to the end of the number
82 ✖️ 10 🟰 820
68 ✖️ 10 🟰 680
43 ✖️ 10 🟰 430
Silver
The leg of the width is 16m
Gold
43 multiply ✖️

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Iqra S. says:

01/02/2025 at 12:18 pm

bronze
i noticed that dexter is correct because when you multiply 32 by 10 you always have to add a zero because all the multiples of ten have zero and we are timesing by ten that is how we have to change it into the next colmn
82 x10=820
68×10=680
43×10=430
silver
so in this you have to do 6×100=600
and2x100=200
so the lenghth is 600m
and the wighth is 200m
30px 100=30ponds is wrong because when you x 30 by 100 you have to add 2 zeroes wich is 3000pounds
gold
43×5=215
36×4=144
74×5=370
non of them are correct because they fogot to add the 2 0n the zero

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Dennis B. says:

01/02/2025 at 11:30 am

32×10=320 this is how I got it 30×10=300,2×10=20
43×10=430 this is how I got it 40×10=400,3×10=30
68×10=680 this is how I got it 60×10=600,8×10=80
82×10=820 this is how I got it 80×10=800,2×10=20

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1. Miss Naeem says:
  
  03/02/2025 at 2:47 pm
  
  Well done Dennis , complete silver too please
  
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Ella K. says:

01/02/2025 at 9:52 am

2 part of maths
The 2 one is not the multiple of 100

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Zakariyah A. says:

31/01/2025 at 8:50 pm

43×5=215
36×4=144
74×5=370

Jack is correct because 234 x6=1404. Sam is wrong because she forgot to add her 2 that she left at the bottom.

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Zenat N. says:

31/01/2025 at 8:29 pm

bronze
I noticed that you just have to add on ten in the end of number.
82 x 10=820
68 x 10=680
43 x 10=430
Silver
The legs are width of the roof is 16 m
The middle equation because 15p times by 100 is not £1.50.
Gold
43 times by five equal215
74 x5=370
jack is correct because 180 add 1200 add 24 equal 1404.
I tried my best.

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Arham S. says:

31/01/2025 at 7:15 pm

Bronze
I noticed that you have to add a place holder on to your ones column
The answer to 82×10=820
The answer to 68×10=680
The answer to 43×10=430
Silver
The length of the room is 1600 meters because 6+6=12×100=1200 2+2=4×100=400+1200
Bronze
I noticed that you have to add a place holder on to your ones column
The answer to 82×10=820
The answer to 68×10=680
The answer to 43×10=430
Silver
The length of the room is 1600 meters because 6+6=12×100=1200 2+2=4×100=400+1200
The correct answer is 3p×100=£3 because 3p×100=300p that equal £3
The wrong one is 15p×100=£1.50p but 15p×100=£15

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1. Arham S. says:
  
  01/02/2025 at 7:31 pm
  
  Gold
  Jack has the correct answer because he times 4×6=24 then 30×6=180 then 200×6=1200+180+24=1404
  Sam made a mistake when multiplying 200 by 6. He wrote 120 instead of 1200.
  
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Nabira M. says:

31/01/2025 at 7:02 pm

Bronze:
When you multiply by 10 you add on a 0 at the end.
1.820
2.680
3.430

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1. Miss Naeem says:
  
  03/02/2025 at 2:54 pm
  
  Please complete silver Nabira
  
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Amelia R. says:

31/01/2025 at 6:28 pm

I noticed you just need to add a 0 on to the end so 82×10 is 820 68×10 is 680 43×10 is 430

Bronze

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1. Miss Naeem says:
  
  03/02/2025 at 2:48 pm
  
  Well done , complete silver too please
  
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Dhonshan R. says:

31/01/2025 at 6:02 pm

Bronze:
Q1. I notised that the ones’ collumn goes to the tens column and the tens’ column goes to the hundreds column.

Q2. 82 68 43
x x x
10 10 10
___ ___ ___
00 00 00
820 680 430
___ ___ ___
820 680 430

Silver:
Q1. 12 Q2. 3p x [100] = £3 because 3p x 10p = 30p so, 30p x 10p = £3.
x 15p x [100] = £15 because 15p x 10p = £1.50 so, £1.50 x 10p = £15.
10 30p x [100] = £30 because 30p x 10p = £3 so, £3 x 10p = £30.
___
00
120
___
120

Gold: Q1. 43 36 74
x x x
5 4 5
___ ___ ___
215 144 370
___ ___ ___
1 2 2

Q2. Jack is correct because 4 x 6 = 24, 30 x 6 = 180, 200 x 6 = 1200 and the answer is 1404 and
he got that answer so, he is correct.
Sam got his answer by nt adding the exchanged number.

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Elim F. says:

31/01/2025 at 4:55 pm

Bronze:
I noticed that when you multiply you have to move the number one place forward .
82×10=820
68×10=680
43×10=430
Silver:
The length and width of the roof is equal to 16
It is because 15 × 100 =150 and it does not equal £1.50
Gold:
43×5=215
36×4=164
74×5=370
Jake is correct. I know this because 6×4=24 and 6 ×30=180 and also 6 × 200=1,200 and when you add all of them together it equals 1,404

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1. Miss Naeem says:
  
  03/02/2025 at 2:53 pm
  
  Well done Elim
  
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Amina I. says:

31/01/2025 at 4:33 pm

Bronze;
820
680
430
Silver;
length-2m
width-6m
together-16m

15p x £15 doesn’t multiply by 100 because £15 =150 and 150 is not in the multiple of 100.
Gold;
43×5=265
36×4=144
75×5=370
Jack is correct because Sam didn’t add the 200 to 200

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1. Miss Naeem says:
  
  03/02/2025 at 2:52 pm
  
  Great work Amina
  
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Hudaa M. says:

31/01/2025 at 4:06 pm

Bronze
82×10=820
68×10=680
43×10=420
Sliver
2cm=2m
6cm=6m
The middle one because 15 x 100 is not 1.50
Gold
43×5=215
36×4=144
74×5=370
They Are both wrong because in the tens column you had to add the 2 but none of them did

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Ella K. says:

31/01/2025 at 3:46 pm

Gold
Sam is correct but jack is not correct he is wrong.

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Ella K. says:

31/01/2025 at 3:45 pm

Silver
The size of the width is 108 because I just added 100 2 and 6
Gold
3×5=15 4×5=20 43×5=215
6×4=24 3×4=12 36×4=144
4×5=20 7×5=35 74×5=370

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1. Iqra F. says:
  
  02/02/2025 at 9:11 am
  
  Bronze:
  You just need to add on a 0 at the end
  82x 10=820
  68x 10=680
  43x 10=430
  
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  1. Miss Naeem says:
    
    03/02/2025 at 2:50 pm
    
    Please complete silver
    
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Ella K. says:

31/01/2025 at 3:33 pm

Bronze
I noticed that Dexters working out is correct because he worked it out correctly 1.820 2.”680 3.430 it’s easy you just have to add the zero at the end

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Bilal U. says:

18/01/2025 at 3:44 pm

Bronze:
I noticed that one you multiply by 10 , You add one more zero.
82×10 = 820
68×10 = 680
43×10 = 430
Silver:
The legs are width of the roof is 16 m
The middle equation because 15p times by 100 is not £1.50.
Gold:
43 times By five equals 215
36×4=164
74×5=370
Jack is correct because 180 add 1200 add 24 equals 1404.

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Year 2 Homework 13.6.25

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