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Year 5

Describe and write decimal numbers with tenths in different ways

I can describe and write decimal numbers with tenths in different ways.

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Share activities with pupils
New
New
Year 5

Describe and write decimal numbers with tenths in different ways

I can describe and write decimal numbers with tenths in different ways.

Download all resources
Share activities with pupils

Lesson details

Key learning points

  1. Tenths can label parts of a whole divided into ten equal parts.
  2. Tenths can be positions on a numberline between whole numbers.
  3. Tenths can be recorded as fractions and decimals on a number line.

Common misconception

Pupils write whole numbers as tenths incorrectly, for example as eight tenths not eighty tenths.

Reiterate that ten tenths are equal to one whole so twenty tenths are equal to two wholes. Continue this to build generalisation.

Keywords

  • Tenth - A tenth is the name you give to one part of ten equal parts.

  • Decimal number - A decimal number has a decimal point followed by digits that show the fractional part.

  • Fraction - A fraction shows us how many equal parts in a whole.

  • Mixed number - A number which combines both a whole number and a fraction is known as a mixed number.

Ensure children are able to generalise that a whole between any two consecutive numbers can be divided into ten equal parts making links between 0-1 number line and any other number line with two consecutive numbers.
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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Starter quiz

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6 Questions

Q1.
Write zero point seven as a decimal number.
Correct Answer: 0.7
Q2.
What number is missing from the sequence below?
An image in a quiz
Correct Answer: 0.6, nought point six, zero point six, point six
Q3.
Write, in words, one other way that 0.2 could be represented.
Correct Answer: zero point two, zero wholes and two tenths, zero ones and two tenths, nought point two, two tenths
Q4.
Which description of the image is incorrect?
An image in a quiz
fifteen tenths
one point five
Correct answer: zero point fifteen
one whole and five tenths
Q5.
Write, as a decimal number, what this picture represents.
An image in a quiz
Correct Answer: 1.8
Q6.
Look at the image and complete the sentence. The arrow is pointing to tenths.
An image in a quiz
Correct Answer: 18, 18 tenths, eighteen, eighteen tenths

Exit quiz

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6 Questions

Q1.
Which descriptions match the picture?
An image in a quiz
Correct answer: six tenths
Correct answer: zero point six
6.0
six tens
Q2.
Look at the image and complete the sentence. Each part in the whole represents .
An image in a quiz
Correct Answer: one tenth, 0.1, 1 tenth, 1/10, a tenth
Q3.
Fill in the missing decimal number.
An image in a quiz
Correct Answer: 7.7, seven point seven
Q4.
What number is the arrow pointing to? Give your answer as a decimal.
An image in a quiz
Correct Answer: 1.1, one point one
Q5.
Write the following mixed number as a decimal number.
An image in a quiz
Correct Answer: 2.1, two point one
Q6.
Which number represents 263.6 as a fraction?
An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz