New
New
Year 5

Use known facts to carry out conversions that correspond to 10 and 100 parts

I can use known facts to carry out conversions that correspond to 100 parts.

New
New
Year 5

Use known facts to carry out conversions that correspond to 10 and 100 parts

I can use known facts to carry out conversions that correspond to 100 parts.

Lesson details

Key learning points

  1. If 1 cm = 10 mm, then 3 cm = 3 x 10 mm = 30 mm
  2. If 1 m = 100 cm, then 3 m = 3 x 100 cm = 300 cm
  3. If £1.00 = 100 p, then £3.00 = 3 x 100 p = 300 p

Common misconception

Pupils might see a number like 9.2 m and incorrectly partition it into 9 m and 2 cm.

It is essential that pupils are exposed to lots of examples of visual models, such as parts of circles and number lines, so that they have a secure understanding of why, in this case, the 0.2 m is equal to 20 cm.

Keywords

  • Equivalent - If two or more things have the same value, they are equivalent.

  • Convert - Change a value or expression from one form to another.

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.
Match the unit of measure to the correct abbreviation.
Correct Answer:centimetre ,cm

cm

Correct Answer:metre ,m

m

Correct Answer:pence,p

p

Correct Answer:millimetre,mm

mm

Q2.
Which of these numbers are multiples of 10?
10.5
Correct answer: 60
59
Correct answer: 50
25
Q3.
Which of these numbers are multiples of 100?
Correct answer: 100
105
250
Correct answer: 500
590
Q4.
How many millimetres are there in a centimetre?
Correct Answer: 10, ten, 10 mm
Q5.
How many pennies are there in £1.00?
Correct Answer: 100, one hundred
Q6.
How many centimetres are there in one metre?
Correct Answer: 100, one hundred

6 Questions

Q1.
Look at the image. What is this length written as a decimal?
An image in a quiz
0.6 cm
1.0 cm
Correct answer: 1.6 cm
0.16 cm
Q2.
Convert 1.6 cm into mm. mm
An image in a quiz
Correct Answer: 16, 16mm
Q3.
Convert £5.60 into pence. p
Correct Answer: 560, 560p
Q4.
Convert 7.25 m into cm. cm
Correct Answer: 725, 725cm, 725 cm
Q5.
Convert 8.75 m into cm. cm
Correct Answer: 875, 875 cm, 875cm
Q6.
Order these distances from shortest to longest:
1 - 2 $$ \frac{1}{4} $$ m
2 - 2.4 m
3 - 250 cm