Year 5

# Converting between units of length in the context of perimeter

Year 5

# Converting between units of length in the context of perimeter

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## Lesson details

### Key learning points

- In this lesson, we will model problem solving activities where we must work out the perimeter of shapes with different units and then create designs involving constraints.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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### 5 Questions

Q1.

In a long jump I achieve 1.4 m and my friend achieves 10 cm less than me. How far did my friend jump?

1.41 m

1.6 m

1300 m

Q2.

It takes 8 km to get to my nan's house and half the distance is where my cousin lives, how far away does my cousin live?

0.4 m

140 m

800 m

Q3.

Which of the measurements below is likely to be the length of my bedroom?

10 km

3.2 cm

38 m

Q4.

Which of the measurements below seem to be correct for a kitchen in my sister's doll house?

0.9 m by 0.8 m

1.9 m by 2.9 m

5 m by 6 m

Q5.

Ribbon A is 3.4 m long and ribbon B is 200 mm shorter than ribbon A. How long is ribbon B?

3.6 m

300 cm

300 mm

### 5 Questions

Q1.

A rectangle has a width of 4 m and a length of 20 m. What is it's perimeter?

24 m

44 m

80 m

Q2.

If a rectangle has a width of 4 metres and a length of 700 cm, what is the perimeter of the shape?

0.2 m

20 m

22 cm

Q3.

A living room has a perimeter of 26 m in total. Which of the below show its possible dimensions?

width = 2.6 m and length = 6.2 m

width = 20 m and length = 6 m

width = 4 m and length = 6.5 m

Q4.

A games room has a perimeter of 36 m in total. Which of the options below cannot be the dimensions of the game room?

width of 4 m and length of 14 m

width of 7 m and length of 11 m

width of 8 m and length of 10 m

Q5.

Which of the dimensions below does not have the same perimeter as the rest?

Width = 2.5 m and Length = 3.6 m

Width = 4.5 m and Length = 1220 cm

Width = 480 cm and Length = 260 cm