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      Describe and write decimal numbers with hundredths in different ways

      Lesson details

      Learning outcome

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

      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.

      Teacher tip

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

      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

      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

      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: $$ \frac{107}{100} $$

      To help you plan your 5 maths lesson on: Describe and write decimal numbers with hundredths in different ways, download all teaching resources for free and adapt to suit your pupils' needs...