Year 3 Maths Challenge Spring 2

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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.

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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 £8 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 £5 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.  He needs to know which allotment will fit the type of tree. 

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 =£ 384 and 48 times 8= 240. 384-240=144 because 3-2=1, 8-4=4 and 4-0=4 so it’s 144.
    Plaium:
    Enclosure 1 is 80m.
    Enclosure 2 is 177m.
    Enclosure 3 is 120m.
    Enclosure 4 is 100m.
    Enclosure 5 is ‘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 = £384
      48m x 5 = £240

      384-240 = £144 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 =£384
    48 x 5= £240
    384 – 240= £144

  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 £384. 48 x 8 = 384.
    3. a. It would be cost now is £240 . 48 x 5 = 240.
    b. I saved £144. 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) 48×8 = 384.
    3) The whole fence will cost 48 m x 8 £=384 £.
    When the wood is reduced, the cost 48m x 5 £=240 £.
    384 £– 240 £= 144 £ so I saved 144£.
    Platinum
    Enclosure 1: 15+15+25+25= 80m (Oak, Maple, Walnut).
    Enclosure 2: 60+12+25+25= 122m (Oak, Conifer).
    Enclosure 3: 20×6= 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: 12×4= 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 £8 =£384

    3) a. 48 times £5= £240
    b. 384 – 240= £144
    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 £8 =£384

    3) a. 48 times £5= £240
    b. 384 – 240= £144
    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 £8=£384
    3.a) 48m x £5=£240
    b) £384-£240=£144
    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

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