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Lesson 3 of 5

Describe and write decimal numbers with hundredths in different ways

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

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View unit
Lesson 3 of 5
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New

Describe and write decimal numbers with hundredths in different ways

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

Download all

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Lesson details

Key learning points

  1. Hundredths can be counted and represented with place value resources.
  2. Hundredths can be counted and represented as decimals on a number line.
  3. Hundredths can be counted and represented as fractions on a number line.

Keywords

  • Hundredth - One part of one hundred equal parts.

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

  • Fraction - Shows us how many equal parts in a whole.

  • Multiple - The result of multiplying a number by an integer.

Common misconception

When crossing the tenth boundary, pupils count ten hundredths as 'zero point zero ten'.

Use cardinal representations to guide the pupil's counting so ten hundredths and one tenth equivalence can be discussed.

Dual counting can be used to support pupils to see both decimal and fraction notation as interchangeable.
Teacher tip

Licence

This content is © Oak National Academy Limited (2025), 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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Prior knowledge starter quiz

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6 Questions

Q1.
What is the name of the missing place value column?

An image in a quiz
Tens column
Correct answer: Tenths column
Decimal column

Q2.
Look at the sequence. Write the missing number as a decimal.

An image in a quiz
Correct Answer: 0.6, zero point six, nought point six

Q3.
0.8 can be described as:

Correct answer: 8 tenths
Correct answer: zero point eight
8 tens
Correct answer: zero wholes and eight tenths.

Q4.
Which of these representations does not represent 0.4?

An image in a quiz
An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz

Q5.
Write this representation as a decimal number.

An image in a quiz
Correct Answer: 0.34

Q6.
Which image represents 38 hundredths?

An image in a quiz
Correct Answer: An image in a quiz
An image in a quiz
An image in a quiz

Assessment exit quiz

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6 Questions

Q1.
Write the next decimal number in the sequence after 0.39.

An image in a quiz
Correct Answer: 0.4, 0.40

Q2.
Tick the ways that 0.25 can be described.

Correct answer: Two tenths and five hundredths
Correct answer: Zero point two five
Correct answer: Twenty five hundredths
Twenty five tenths

Q3.
Match the number to the description.

Correct Answer:90,nine tens

nine tens

Correct Answer:0.9,zero point nine

zero point nine

Correct Answer:0.09,nine hundredths

nine hundredths

Correct Answer:9,nine

nine

Q4.
40 hundredths can be represented as:

Correct answer: 0.4
Correct answer: $$ {40} \over {100} $$
Correct answer: $$ {4} \over {10} $$
400
0.04

Q5.
Here is part of a number line. Which equation matches the representation?

An image in a quiz
Correct answer: 0.3 + 0.1 = 0.4
0.03 + 0.10 = 0.4
Correct answer: $$ \frac{30}{100} $$ + $$ \frac{10}{100} $$ = $$ \frac{40}{100} $$
0.03 + 0.01 = 0.04

Q6.
This image can be represented a:

An image in a quiz
Correct answer: 1.07
$$ 1\frac{7}{10} $$
Correct answer: $$ 1\frac{7}{100} $$
1.7
Correct answer: $$ \frac{107}{100} $$

Lesson appears in

UnitMaths / Understand hundredths as parts of a whole and represent

Maths

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