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.

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.

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.

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.

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).

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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