# Year 3 Maths Challenge Spring 2

BRONZE:

A plant’s roots are 12cm deep underground. The stem on top is 14cm tall.

What is the length plant altogether?

SILVER:

Convert the height of the different trees into metres. Remember there are 100cm in a metre.

GOLD:

1. I have 2 square shaped allotments. Allotment one is 8m long and allotment two is 12m long. a. What is the perimeter of each allotment? b. What is the difference in perimeter of the allotments?

2. I am going to build a wooden fence around allotment two. It cost ยฃ8 per metre of wood. How much would it cost to buy the wood for the whole fence?

3. The wood goes on sale and is reduced to ยฃ5 per metre. a. How much will it cost if I buy it now? b. How much money will I save?

PLATINUM:

Drawings of different sized allotments have been given to a gardener.ย  He needs to know which allotment will fit the type of tree.ย

Can you help him by calculating the perimeter of each enclosure?

Which enclosure would be suited for which plants?

#### 89 responses to “Year 3 Maths Challenge Spring 2”

1. Meena B.

Bronze:
12cm +14cm= 26cm so the answer for the plant equals 26cm.
Silver:
Maple= 1m and 73cm.
Crab apple= 1m and 79cm.
Snow gum: 1m and 84cm.
Cercis:1m and 65cm.
Oak tree: 1m and 97cm.
Gold:
8 m+ 8 m+8 m+8 m= 32m.
8 times 4 = 32.
12m+12m+12m+12m=48m.
12 times 4 =48.
The difference is 48m-32m=16m.
48 times 8 =ยฃ 384 and 48 times 8= 240. 384-240=144 because 3-2=1, 8-4=4 and 4-0=4 so itโs 144.
Plaium:
Enclosure 1 is 80m.
Enclosure 2 is 177m.
Enclosure 3 is 120m.
Enclosure 4 is 100m.
Enclosure 5 is โ86m.
Enclosure 6 is 48m.
Enclosure 7 is 24m.

2. Mahdi R.

Bronze
14+12=26
Silver
1.1m and 73cm.
2.1m and 79cm.
3.1m and 84cm.
4.1m and 65cm.
5.1m and 97cm.

3. Rehyan M.

Bronze
12+14=26
Silver
Maple 1m and 73cm
Crab Apple 1m and 79cm
Snow Gum 1m and 84cm
Cerci 1m and 65cm
Oak 1m and 97cm
Gold
8+8+8+8=32
12+12+12+12=48

4. Afsa P.

Bronze
12cm+14cm=26cm
Silver
Maple=1m and 73cm
Crabapple=1m and 79cm
Snow gum=1m and 84cm
Cercis=1m and 65cm

5. Sara K.

Bronze
12cm +14cm= 26cm

6. Irfa M.

Bronze;
12+14=26cm
Silver;
100cm=1m

173cm=100cm +73 cm=1m73cm
179cm=1m79cm
184cm=1m84cm
165cm=1m65cm
197cm=1m97cm

7. Bethany P.

Bronze
12cm+14cm=26cm
Silver
1. 1m 73cm
2. 1m 79cm
3. 1m 84cm
4. 1m 65cm
5. 1m 97cm

8. Sheik A.

Bronz, 26
Silver. 73
79
84
65
97

9. Mohammed D.

Keyan Dean 3R

Bronze 14+12 = 26
Silver
173cm – 1.73m
179cm – 1.79m
184cm – 1.84m
165cm – 1.65m
197cm – 1.97cm

1. Mohammed D.

Keyan Dean 3R

Gold

Allotment 1 8×4 = 32
Allotment 2 12×4 =48

48m x 8 = ยฃ384
48m x 5 = ยฃ240

384-240 = ยฃ144 they save

10. Lawan R.

The length is 26 cm
1 m and 73 cm
1 m and 84 cm
1 m and 63 cm
1 m 97 cm

11. Mohammed E.

Bronze:
The entire length is 26cm I know this because 4cm+2cm=6cm and 10cm+10cm=20cm so 20cm + 6cm=26cm.

Silver:
1.1m and 73cm
2.1m and 79cm
3.1m and 84cm
4.1m and 65cm
5.1m and 97cm

Gold:
1.Enclosure 4
2.Enclosure 2
3.Enclosure 5
4.Enclosure 3
5.Enclosure 1
6.Enclosure 6

12. Aiza B.

Bronze
12cm + 14cm =26cm
Silver
`173cm = 1m 73cm
197cm = 1m 97cm
184 = 1m 84cm
165cm =1m 65cm
179cm =1m 79cm

13. Keaton O.

Bronze
The plant length is 26cm
12cm + 14cm= 26cm

Silver

Maple 173 cm = 1m73cm

Crab Apple 179cm = 1m79cm

Snow gum 184cm = 1m84cm

Cercis 165cm= 1m65cm

Oak 197cm= 1m97cm

Gold
Allotment 1 is 32 8×4=34m
Allotment 2 is 48 12×4=48m
48-32=16m
48m x 8 =ยฃ384
48 x 5= ยฃ240
384 โ 240= ยฃ144

14. Yahya K.

BRONZE
The plant is 26cm altogether.
SILVER
1. maple tree = 1m 73cm
2. crab apple tree = 1m 79cm
3. snow gum = 1m 84cm
4. cercis = 1m 65cm
5. oak tree = 1m 97cm

15. Inder S.

Bronze
The length of the plant all together is 26cm because 12+14=26cm.
Silver
Maple – 1m and 73cm
Crab apple – 1m and 79cm
Snow Gum – 1m and 84cm
Cercis – 1m and 65cm
Oak – 1m and 97cm
Gold
The perimeter of Alotment one is 32m . 8+8+8+8 = 32 . 8x 4 = 32.
The perimeter of Alotment two is 48 m . 12+ 12+12+12= 48. 12 x 4= 48.The difference is 48 – 32 = 16 m.
2. The whole fence cost is ยฃ384. 48 x 8 = 384.
3. a. It would be cost now is ยฃ240 . 48 x 5 = 240.
b. I saved ยฃ144. 384 – 240 = 144.

16. Welat M.

Bronze:
12+14=26
Silver:
Maple 173=1m73cm
Crab apple 179=1m79
Snow gum 184cm=1m84cm
Cercis 165cm=1m65cm
Oak 197cm=1m97cm
Gold
1) The first square is 8m X4 = 32m
The Second square is 12m X4= 48m
48m -32m=16m
2) 48ร8 = 384.
3) The whole fence will cost 48 m x 8 ยฃ=384 ยฃ.
When the wood is reduced, the cost 48m x 5 ยฃ=240 ยฃ.
384 ยฃโ 240 ยฃ= 144 ยฃ so I saved 144ยฃ.
Platinum
Enclosure 1: 15+15+25+25= 80m (Oak, Maple, Walnut).
Enclosure 2: 60+12+25+25= 122m (Oak, Conifer).
Enclosure 3: 20ร6= 120m (Oak, Conifer).
Enclosure 4: 30+25+25+10+10=100m (Oak, Pine, Maple).
Enclosure 5: 30+30+13+13=86m (Oak, Maple, Walnut).
Enclosure 6: 12ร4= 48m (Cedar).
Enclosure 7: 8+8+6=22m (Cedar).

17. Janelle O.

Sorry I posted it twice I am so sorry Mrs Redhead.

18. Janelle O.

Bronze
The length altogether is 26cm.
Silver
Maple-1m 73cm
Crab Apple-1m 79cm
Snow Gum-1m 84cm
Cercis-1m 65cm
Oak-1m 97cm
Gold
1) The first square is 8 times 4= 32m
The Second square is 12 times 4= 48m
48-32= 16m

2) 48m times ยฃ8 =ยฃ384

3) a. 48 times ยฃ5= ยฃ240
b. 384 – 240= ยฃ144
Platinum
Enclosure 1= 80 (Oak tree and Walnut tree)
Enclosure 2 =122 (Conifer tree )
Enclosure 3 = 120 (Walnut tree)
Enclosure 4 = 100 (Pine tree)
Enclosure 5 = 86 ( Maple Tree)
Enclosure 6 = 48 ( Cedar Tree)
Enclosure 7 = 22.

19. Janelle O.

Bronze
The length altogether is 26cm.
Silver
Maple-1m 73cm
Crab Apple-1m 79cm
Snow Gum-1m 84cm
Cercis-1m 65cm
Oak-1m 97cm
Gold
1) The first square is 8 times 4= 32m
The Second square is 12 times 4= 48m
48-32= 16m

2) 48m times ยฃ8 =ยฃ384

3) a. 48 times ยฃ5= ยฃ240
b. 384 – 240= ยฃ144
Platinum
Enclosure 1= 80 (Oak tree and Walnut tree)
Enclosure 2 =122 (Conifer tree )
Enclosure 3 = 120 (Walnut tree)
Enclosure 4 = 100 (Pine tree)
Enclosure 5 = 86 ( Maple Tree)
Enclosure 6 = 48 ( Cedar Tree)
Enclosure 7 = 22

20. Ravi P.

12 + 14 is 24cm.
Maple= 2m27
Grap apple=4m19cm
Snow gum =5m10cm
Cursic=2m11cm

21. Hamsia D.

Bronze
The flower is 26cm altogether. I know this because 12+14=26cm.
Silver
Maple
173cm=1m 73cm
Crab Apple
179cm=1m 79cm
Snow gum
184cm=1m 84cm
Cercis
165cm=1m 65cm
Oak
197cm=1m 97cm
Gold
1.a) Allotment 1=8×8=64m squared
Allotment=12×12=144m squared
b) 144-64=80m squared
2. Perimeter of allotment=12+12+12+12=48m
48m x ยฃ8=ยฃ384
3.a) 48m x ยฃ5=ยฃ240
b) ยฃ384-ยฃ240=ยฃ144
Platinum
Enclosure 1=80m Maple tree
25+25+15+15=80
Enclosure 2=122m Conifer tree
60+25+25+15=122
Enclosure 3= 120m Oak tree
20-20+20+20+20+20=120
Enclosure 4= 100m Pine tree
30+25+25+10+10=100
Enclosure 5=86m Walnut tree
13+13+30+30=86
Enclosure 6=48m Cedar tree
12+12+12+12=48
Enclosure 7=22m
8+8+6=22