New
New
Year 7

Securing understanding of place value in metric units

I can convert statements about measure.

New
New
Year 7

Securing understanding of place value in metric units

I can convert statements about measure.

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Lesson details

Key learning points

  1. In order to compare metric measures, conversion may be necessary.
  2. Metric measures can be converted by using place value.
  3. Real-world examples can help us see if the conversions have the correct magnitude.

Keywords

  • Metric - Metric units are based around the standard units of metre, gram and litre.

  • Prefix - A prefix is a group of letters attached to the front of a root (word) to make a new word, for example tricycle.

  • Centi - Centi placed before a unit means (1/100)

  • Milli - Milli placed before a unit means (1/1000)

  • Kilo - Kilo placed before a unit means 1000 times.

Common misconception

Kilo gram is 1000 bigger than a gram, so 40 g = 1000 x 40 kg

Kilo gram is 1000 bigger than a gram so 1 kg = 1000 g.

Think about logic of answers when converting. Key examples like a door being 2 m or a bag of sugar 1 kg = 1000 g etc. can help with sense checks.
Teacher tip

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
Which of the following are not units of capacity?
litre
centilitre
Correct answer: kilogram
millilitre
Correct answer: metre
Q2.
Match the appropriate unit to each object.
Correct Answer:The length of a ruler is 15,cm

cm

Correct Answer:The mass of cookie is 15,grams

grams

Correct Answer:The capacity of a sink is 15,litres

litres

Correct Answer:The length of a lorry is 15,metres

metres

Q3.
When measuring length, mass and capacity; the standard metric units are metre, gram and __________.
Correct Answer: litre, litres
Q4.
Instead of saying 1000 grams, you could say __________.
Correct answer: 1 kg
10 kg
$${1}\over{10}$$ kg
$${1}\over{100}$$ kg
Q5.
What is the place value of the 7 in 172.5 kg?
ones
Correct answer: tens
hundreds
tenths
hundredths
Q6.
Using place value and the meaning of the prefix, which of these is equivalent to 4 kilometres?
0.004 m
$${4}\over{1000}$$ m
400 m
Correct answer: 4000 m

6 Questions

Q1.
Complete the sentence: "one kilogram is equal to ________"
100 grams
Correct answer: 1000 grams
$$1\over100$$ gram
$$1\over1000$$ gram
Q2.
10 litres is equal to __________ millilitres?
Correct Answer: 10 000, 10000, ten thousand
Q3.
Starting with the smallest, put these distances in order of size.
1 - 1 mm
2 - 1 cm
3 - 1 m
4 - 10 m
5 - 0.1 km
6 - 1 km
Q4.
Which of these is heavier than 1.05 kg?
1006 g
106 g
10.6 g
Correct answer: 1060 g
Correct answer: 1600 g
Q5.
Match the distances with their correct conversions.
Correct Answer:35 m,3500 cm

3500 cm

Correct Answer:35 km,35 000 m

35 000 m

Correct Answer:35 cm,350 mm

350 mm

Correct Answer:0.35 km,350 m

350 m

Q6.
The distance from Land's End (in Cornwall) to John O'Groats (in Scotland) is 970 km. Which of these are equivalent distances?
9700 m
97 000 m
Correct answer: 970 000 m
Correct answer: 97 000 000 cm
970 000 000 cm