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How well did you do? Did you show calculations ?

Do now: These cuboids are all made from 1 cm cubes. Can you find their volumes and surface areas? State the units in your answers. 1. 2. 3. 5. 6. 4. How well did you do? Did you show calculations ?. 1. 2. 3. V = 3 x 3 x 3 = 27cm 3. V = 1 x 2 x 4 = 8cm 3. V = 2 x 2 x 4 = 16cm 3. 5.

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How well did you do? Did you show calculations ?

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  1. Do now: These cuboids are all made from 1 cm cubes.Can you find their volumes and surface areas? State the units in your answers. 1 2 3 5 6 4

  2. How well did you do? Did you show calculations ? 1 2 3 V = 3 x 3 x 3 = 27cm3 V = 1 x 2 x 4 = 8cm3 V = 2 x 2 x 4 = 16cm3 5 6 4 V = 4 x 4 x 2 = 32cm3 V = 3 x 3 x 5 = 45cm3 V = 2 x 4 x 4 = 32cm3

  3. How well did you do? Did you show calculations ? 1 2 3 SA = 2 x 8 + 2 x 4 + 2 x 2 = 28cm2 SA = 2 x 4 + 2 x 8 + 2 x 8 = 40cm2 SA = 2 x 9 + 2 x 9 + 2 x 9 = 54cm2 5 6 4 SA = 2 x 9 + 2 x 15 + 2 x 15 = 78cm2 SA = 2 x 8 + 2 x 8 + 2 x 16 = 64cm2 SA = 2 x 16 + 2 x 8 + 2 x 8 = 64cm2

  4. Challenge question 1:These two shapes each have a volume of 60cm3 Can you find the missing lengths? 1 2 ? 6 cm 3 cm 5 cm 5 cm ? Extra challenge: Can you find the length, width and height of another cuboid that has a volume of 60cm3 ?

  5. How well did you do? Did you solve these problems correctly, showing your calculations? 1 2 ? 6 cm 3 cm 5 cm 5 cm ? 3 x 5 x 4 = 60cm3 6 x 5 x 2 =60cm3

  6. Challenge question 2:These two shapes have the same volume. Can you find the missing length? 4 cm 8 cm 10 cm 5 cm ? 4 cm

  7. How well did you do? Did you solve the problem correctly, showing your calculations? 4 cm 8 cm 10 cm 5 cm ? 3 cm 8 x 3 x 10 = 240cm3 4 x 5 x 12 =240cm3 How did you work out the answer?

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