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Year 5

Recall common fraction-decimal equivalents

I can recall common fraction - decimal equivalents.

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New
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Year 5

Recall common fraction-decimal equivalents

I can recall common fraction - decimal equivalents.

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Share activities with pupils
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Lesson details

Key learning points

  1. 0.1 is equal to 1/10
  2. 0.2 is equal to 1/5
  3. 0.25 is equal to 1/4
  4. 0.5 is equal to 1/2
  5. 0.75 is equal to 3/4

Keywords

  • Equivalent - Numbers are equivalent if they have exactly the same value.

Common misconception

Knowing and understanding that one-fifth as a fraction is equivalent to 0.2 as a decimal and that counting in steps of 0.2 is the same as counting in fifths.

Make sure that pupils have the opportunity to rehearse the fact that one-fifth is equivalent to 0.2 more frequently during the lesson and at other times when looking at fractions and decimals.

It is important that pupils know how to convert fractions into decimals so that they can use a strategy if they forget the fact. Once they know the facts, provide plenty of opportunities for them to recall them both as facts and in the context of ordering and comparing values and amounts/
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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Starter quiz

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6 Questions

Q1.
What fraction and decimal of the hundred square is shaded?
An image in a quiz
$${1}\over{3}$$
0.33333333
Correct answer: $${1}\over{4}$$
Correct answer: 0.25
Q2.
What fraction and decimal of the hundred square is shaded?
An image in a quiz
Correct answer: $${1}\over{10}$$
0.2
Correct answer: 0.1
$${2}\over{5}$$
Q3.
What fraction and decimal of the hundred square is shaded?
An image in a quiz
2.25
Correct answer: $${1}\over{2}$$
$${2}\over{25}$$
Correct answer: 0.5
Q4.
One-quarter of 100 is equal to
Correct Answer: 25, twenty-five
Q5.
One-tenth of 100 is equal to
Correct Answer: 10, ten
Q6.
One-fifth of 100 is equal to
Correct Answer: 20, twenty

Exit quiz

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6 Questions

Q1.
$${1}\over{3}$$ and $${2}\over{3}$$ are harder to convert to decimals because ...
The denominator is an odd number.
Correct answer: 3 is not a factor of 10 or 100
Q2.
Match the fractions to their decimal equivalents.
Correct Answer:$${3} \over {100}$$,0.03

0.03

Correct Answer:$${3} \over {4}$$,0.75

0.75

Correct Answer:$${3} \over {5}$$,0.6

0.6

Correct Answer:$${3} \over {10}$$,0.3

0.3

Q3.
Which pairs of cards are equivalent?
Correct Answer: An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz
An image in a quiz
Q4.
What decimal is equivalent to $${2}\over{5}$$?
Correct Answer: 0.4
Q5.
What decimal is approximately equivalent to $${2}\over{3}$$?
Correct Answer: 0.666, 0.667, 0.6666, 0.66
Q6.
Order the fractions and decimals from the largest to the smallest.
1 - $${1}\over{3}$$
2 - 0.3
3 - $${1}\over{5}$$
4 - $${3}\over{100}$$
5 - 0.02

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