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

103 responses

Gurshaanpreet S. says:

03/02/2025 at 9:32 pm

Bronze
1.82×10=820
43×10=430
68×10=680
Silver
1 The total of length and the width of the room is 6,200because 62×100=6,200.
2. 1 is correct 2 is correct 3 is correct.
Gold
1.43×5=215 because 40×5=200 and 3×5=15 so it is 215
2.36×5=180 because 30×5=150 and6×5=30. 30+150=180
3.74×5=380 because 30×5=350 and 4×5=20 and 350+20=380.
Jack is correct because Sam forgot to put 200.

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Aiyla S. says:

03/02/2025 at 8:41 pm

Bronze

The tens move to the hundred column and the one’s move to the ten column. The answer will have a 0 at the end.

82 x 10 =820
68 x 10 =680
43 x 10 =430

Silver

6 X 100 =600cm
2 x 100=200cm

1m = 100cm
Width = 6m
Length = 2m

The function machine which is incorrect is 0.15p x 100 = £1.50, the correct answer is £15.00.

Gold

43 x 5 =215
36 x 4 =144
74 X 5 =370

234 x 6 =1,404
Jack has the right answer becuase Sam didn’t add 2 to the 12 to make it 14.
2 x 6 =12
12 + 2 =14

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1. Mrs Habib says:
  
  10/02/2025 at 7:40 pm
  
  Brilliantly done, Evie. !
  
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Mirr A. says:

03/02/2025 at 8:33 pm

Bronze
82×10=820
68×10=680
43×10=430
———————
Sliver
100×2=200
100×6=600
———————
Gold
43×5=215
36×4=144
74×5=370
——
Jack is correct and Sam didn’t add up the 2 in the thousands place

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Jasmine P. says:

03/02/2025 at 8:02 pm

Silver
15×10=150 because the middle one is not multiplied by 100

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Jasmine P. says:

03/02/2025 at 7:44 pm

Bronze
I noticed that you just add a zero at the end
32×10=320
82×10=820
68×10=680

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Bilaal K. says:

03/02/2025 at 6:52 pm

Bronze

I notice that 32 x 10 =320 ,320 has 32 in it.
82 x 10=820
68×10=680
43 x 10=430

SILVER
The length is 60 m
The width is 20 m

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Evie T. says:

03/02/2025 at 6:25 pm

BRONZE
I noticed that the number gets 10 times bigger!
82 times 10 =820 because you just add a zero with 82.
68 times 10 = 680 because again you just add a zero .
43 times 10= 430 because like Dexter said you just move 1 counter .
———————————————————————————————————.
SILVER
15 times 10 = 1.50
—
GOLD
43 times 5 = 215 because 40 x5 = 200 3×5 =15. 200 +15 =215.
36 times 4 =64 I know this because I did 6 4s that eaqul 24 so I Cary the 2 down the tens Colem then do 3 times 2 equals 64.
74 times 5 = 140 because 4 times5 v20 so again carry your 2 down to the tens coulem then do 7 x 2 equals 14 so 14+10=140.

Jack is correct because 1404 is the correct answer and Salman ‘s answer is Wong becaus 3×2 does not equal o .

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1. Mrs Habib says:
  
  10/02/2025 at 7:41 pm
  
  Superb, well done Evie!
  
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Dominik B. says:

03/02/2025 at 6:02 pm

Bronze

I notice you just add a zero to the end.
82 x 10 = 820
68 x 10 = 680
43 x 10 = 430

Silver

6cm turns into 6m.
2cm turns into 2m.

Number 2 because 15p times 10 is £1.50 but 100 x 15p = £15.

Gold

43 x 5 = 215
36 x 4 = 144
74 x 5 = 370
Sam has got the correct answer because when they did 80 + 20 = 100 she didnt carry the 20 on but Jack did and that is why he got it wrong.

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1. Mrs Habib says:
  
  10/02/2025 at 8:06 pm
  
  Check your answer is Sam correct?
  
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Rahman A. says:

03/02/2025 at 5:12 pm

43×5=215
36×4=144
74×5=370. Gold
Sam is wrong because she was ment to add them

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Rahman A. says:

03/02/2025 at 5:06 pm

Silver 💫
The length would be 16!
3p ×100 = £3
15p ×150 = £1.50
30p × 300 = £30

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1. Mrs Habib says:
  
  10/02/2025 at 8:05 pm
  
  Check your answer for the length. We can go through this together.
  
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Rahman A. says:

03/02/2025 at 4:55 pm

82×10=820
68×10=680
43×10=430. Bronze

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1. Mrs Habib says:
  
  10/02/2025 at 8:04 pm
  
  Well done Rahman.
  
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Sumayya Kolawole says:

03/02/2025 at 4:40 pm

I notice that he just added a zero to the end
1)82×10=820
68×10=680
43×10=430
600m and 200m
The last one
215
144
370
Jack is correct and Sam is wrong because he forgot to add his left over two to his twelve

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1. Mrs Habib says:
  
  10/02/2025 at 7:44 pm
  
  Well done Sumayya …Check your answer for Silver challenge the unit of measurement part you need to convert to metre.
  
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Saanvika M. says:

02/02/2025 at 9:22 pm

Bronze:
1. I notice that when you multiple by ten the ones place always has a place holder.
2. 82 times 10 = 820
3. 68 times 10 = 680
4. 43 times 10 = 430

Silver:
1.
The actual length of the room is 600 cm.
The actual width of the room is 200 cm.
To convert cm to meters ,100 cm=1 meters so, the length of the room is 6 meters and the width is 2 meters.
2.
15 pence times 10 =£1.50
100 pence = 1 pound
To make 1.50 pounds we need to times by 10 from 15 pounds.

Gold:
1.
43* 10=215
H=2 , T=1, O=5
36*4= 144
H=1, T=4,O=4
72*5=370
H=3,T=7,O=0

2.
Jack has the correct answer.
Sam made mistake by not adding the exchange in the hundreds place.

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1. Mrs Habib says:
  
  10/02/2025 at 7:45 pm
  
  Great answers Saanvika.
  
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Safa A. says:

02/02/2025 at 8:01 pm

Bronze
To figure the answer all you need to do is ad the 0
82×10=820
62×10=620
43×10=430
Silver
The width is 108 I know this bra cause 100+6+2=108
Gold
43×5=215
36×4=144
74×5=370
Sam is correct because he added a 200 but jack did not add 200

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1. Mrs Habib says:
  
  10/02/2025 at 7:47 pm
  
  Good effort Safa, check your answers for Silver and Gold please.
  
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Kayla P. says:

02/02/2025 at 7:44 pm

Bronze Challenge:
Dexter’s thinking is correct, because when he multiplies by 10 all the counters move one place to the left on a place value chart. In his in example 32 x 10 = 320. The 3 has moved from the ten’s column to the hundred’s column. The 2 has moved from the one’s column to the ten’s column and then a 0 is added to the end.

1. 82 x 10 = 820
2. 68 x 10 = 680
3. 43×10 = 430

Silver Challenge:
The width of the room of the room is 6cm x 100 = 600cm
The length of the room is 2cm x 100 = 200cm
1m = 100cm
So, the width of the room in metres = 600 divided by 100 = 6m
The length of the room in metres = 200 divided 100 = 2m

The 2nd function machine does not multiple by 100 because
15p x 100 = 1500p but this would = £15 and not £1.50 because 1500 divided by 100 = £15

Gold challenge:
43 x 5 = 215
36 x 4 = 144
74 x 5 = 370

Jack is correct because 234 x 6 = 1404
Sam made a mistake because he forgot to add the remaining 2 on the hundred column.

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1. Mrs Habib says:
  
  10/02/2025 at 8:07 pm
  
  Well done Kayla, I like that you showed how you worked the answers out.
  
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Huzaifah J. says:

02/02/2025 at 6:29 pm

Bronze
1. 82 x 10=820
2. 68 x 10 = 680
3. 43 x 10= 430

gold
43 x 5 = 215
36 x 4 =144
74 x 5 =370
Jack is correct
Sam did the same method as Jack but forgot to add the 2 from the hundreds

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1. Miss Naeem says:
  
  03/02/2025 at 2:40 pm
  
  Well done , remember to complete silver too
  
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Roshaan K. says:

02/02/2025 at 6:15 pm

BRONZE
1. I noticed that when you multiply by 10 the number gets 10 times bigger for example 2×10 the number 2 gets 10 x bigger so that would be 20 . Also you can add a place holder as well and I know that the answers ones column will never be empty when you multiply by 10 because if it wasn’t then it would be simply wrong.
2. 82 x 10=. To do 82 multiplied by 10 you just move the 82 1 TIME to the left and add a place holder to the ones column so your answer would be 820. 68 x 10 =. The answer is 680. I know this because when you multiply by 10 your number will get 10 times bigger.
SILVER
The answer is 16 meters . This is because the width which is 2 x 100 is 200 because when you multiply by 10 you move the number 1 TIME to the left so when you multiply by 100 you move the number 2 TIMES to the left and you add place holders to the tens and ones column and 200 is equal to 2 meters . Finally you need to multiply 6 by 100 which equals 600 because if you didn’t your answer would simply be wrong. So the answer is 600 which is equal to 6 meters and you finally multiply 6 by 2 which is 12 so it would be 12 meters .
SILVER 2
1the middle one because 100 times 15 pence is supposed to be 15 pounds.
Gold
1. 43 2. 36 3. Answer 370.

X 4
X. 5. ————-
144
————. ————-
215. 20
————
1

Gold
Jack is correct and Sam is wrong because he forgot to add the 200 to the 200.

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1. Mrs Habib says:
  
  10/02/2025 at 7:50 pm
  
  Great reasoning skills and you converted the measurements. Well done.
  
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Murtaza A. says:

02/02/2025 at 6:04 pm

Bronze 82 × 10 =820 because 2 moved to the next collem would be 20 and 80 moved to the next collem would be 800
68 × 10= 680 because 8 moved to the next collem would be 80 and 60 moved to the next collem would be 800
43×10=430 because 3 moved to the next collem would be 30 and 40 moved to the next collem would be 400
Silver
The width of the room would be 2 meters because 2×100=200 and 200 cm = to 2 meters
The length of the room will be 6 metres because 6×100=600 and 600 cm =to 6 meters
It would be 30p because when you ×30 by 100 you add 2 zeros so the answer will be £300
Gold
Jack is correct because 234 ×6= 1404 Sam’s mistake washe didn’t carry over the 200

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1. Mrs Habib says:
  
  10/02/2025 at 7:50 pm
  
  Excellent Murtaza.
  
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Tala I. says:

02/02/2025 at 5:53 pm

3P 15p and 30p because the less than 100
🥇gold🥇
43×5=215
36×4=144
74×5=370
Jack is incorrect because jack added 200 more but Sam did not add 200 more

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Tala I. says:

02/02/2025 at 5:49 pm

🥉bronze 🥉
82×10 = 820
68×10 = 618
43×10 = 430
🥈silver🥈
1200 m

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Sarah B. says:

02/02/2025 at 4:13 pm

Bronze:
I noticed that one multiply by 10 and you add one more zero that’s the answer.
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.

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1. Mrs Habib says:
  
  10/02/2025 at 8:01 pm
  
  Well done Sarah, how did you get 16m for Silver? We can go through this together. Have a go at Gold challenge too.
  
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Maximilian J. says:

02/02/2025 at 3:43 pm

Bronze
Dexter is correct because I noticed when you multiply by 10 it add a placeholder.
82×10=820
80×10=800
2×10=20
68×10=680
60×10=600
8×10=80
43×10=430
40×10=400
3×10=30

Silver
The length will be 6m
The width will be 2m
The one that is not multiplied by 100 is 30p to £30 because it would’ve been 1000+30p=£30.
Gold
43 times 5=215
5×3=15
5×40=200
36×4=144
4×6=24
4×30=120
74×5=370
5×4=20
70×5=350

Jack is correct because Sam didn’t add the 200.

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1. Mrs Habib says:
  
  10/02/2025 at 7:51 pm
  
  Fantastic Max! Well done.
  
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Haris S. says:

02/02/2025 at 3:37 pm

Bronze:
82 x 10=820
68 x10=680
43 x 10=430
Silver:
The legs are the width of 16 m
the middle equation because 50p times 100 doesn’t = £1.50

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Abdul A. says:

02/02/2025 at 3:14 pm

bronze

82 times 10 = 820
68 times 10=680
43 times 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 5 equals 215
36 times 4=164
74 times 5=370
jack is correct because 180 add 1200 add 24 equals 1404

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1. Mrs Habib says:
  
  10/02/2025 at 7:57 pm
  
  Good effort Abdul. Can you tell me how you worked out the answer for Silver? Try to convert into metres, so if it 2cm multiply by 100cm which is equal to 200 metres same for the width. Hope this helps.
  
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Ella C. says:

02/02/2025 at 2:53 pm

Bronze.
1. There is 8 hundreds and 2 tens
2. There is 6 hundreds and 8 tens
3. There is 4 hundreds and 3 tens
Silver.
The answer is 15p x 1.50

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1. Mrs Habib says:
  
  10/02/2025 at 7:58 pm
  
  Well done Ella. Try Silver and Gold challenges too, I know you can do it.
  
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Ahsan M. says:

02/02/2025 at 2:24 pm

Bronze
82×10=820
68×10=680
43×10=430
I noticed that all you have to do is you add 0 to the first factor
Silver
The width of the whole room is 600 cm because 6×100 is 600
The second 2 because 15×100 is 1500 and if you put the decimal point it is 15 pound
Gold
43×5=215

36×4=144

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Sulaiman A. says:

02/02/2025 at 12:32 pm

1.82×10=820
43×10=430
63×10=630
Silver:
The 6m is like adding 100 which is 600 and It’s the same for 2m.
All of them are correct expect the middle one because 15×10=1500 not 150.
Gold:
43×5=215
36×4=144
74×5=550
Jack because he added the 200 whilst Sam didn’t.

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1. Miss Naeem says:
  
  03/02/2025 at 2:42 pm
  
  Well done for completing all challenges Sulaiman
  
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Aadyan W. says:

02/02/2025 at 11:53 am

Bronze:
Dexter is correct because they do all move place forward.
82×10=820
68×10=680
43×10=430
Silver:
The real length is 2m and the real width is 6m.
The 3rd one because 30px10=£3.
Gold:
43×5=215
36×4=144
74×5=370
Jack is correct because he added the 200 and Sam didn’t.

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1. Miss Naeem says:
  
  03/02/2025 at 2:43 pm
  
  Well done for completing Aadyaan 😊
  
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Rayyan Mirza says:

02/02/2025 at 10:26 am

Bronze:
I notice that the 2 ones gets times by the 10 and gets moved to the tens. And then, the 3 tens gets times by the tens
too and gets moved to the hundreds.
Silver:
Length of the room: 6m
Width of the room: 2m
The second one is the answer because 15 times 100 = £15
Gold:
1. 43 times 5 = 215
2. 36 times 4 = 144
The first one is wrong because he should have put the 4 at the bottom and 2 the 2 at the top. And the second one is right
3. 74 times 5 = 370

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1. Miss Naeem says:
  
  03/02/2025 at 2:46 pm
  
  Well done Rayyan
  
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Hannah B. says:

01/02/2025 at 9:18 pm

Bronze
I notice that 1×10=10 and 10×10=100 (and also 100×10=1000)
1. 820
2. 680
3. 430
Silver
The length of the room is 6m and the width of the room is 2m.
The middle one is wrong because
3×100=300
15×100=not 150 its 1500
30×100=3000
Gold
43×5=215
36×4=145
74×5=370
Jack is correct because he added the 200

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1. Mrs Habib says:
  
  10/02/2025 at 8:10 pm
  
  Excellent work Hannah. Well done.
  
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