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Year 5 · Decimals and percentages · 15 min

Beyond hundredths

Read and represent thousandths by extending the base-ten place-value pattern.

01 / LEARN

The idea, step by step

Every place is ten times smaller

Moving one place to the right makes the place-value unit ten times smaller. One tenth is ten hundredths; one hundredth is ten thousandths. In 2.305, the three means three tenths, the zero means no hundredths, and the five means five thousandths.

The decimal point separates whole-number places from fraction places. It does not name a place itself. Read 0.047 as forty-seven thousandths, or as zero point zero four seven. The zero in the tenths place keeps the four in the hundredths place.

The places in 2.305
OnesTenthsHundredthsThousandths
2305

Build and rename decimal amounts

Expanded notation shows what each digit contributes: 2.305=2+310+0100+51000. You can also write 2+0.3+0.005. This makes the missing hundredths visible.

A zero at the end of a decimal does not change the amount: 0.6=0.60=0.600. A zero inside a number can change its value if removed. For example, 0.506 and 0.56 do not name the same amount.

2.305=2+310+51000

A common trap

Reading 0.35 as three tenths and five thousandths.

Instead: The five is in the second place after the decimal point, so it means five hundredths. Five thousandths would be 0.005.

02 / WORKED EXAMPLES

See the thinking

Example 1

Read a measuring value

In 4.072 metres, what value does the digit 7 have?

  1. The first place after the decimal point is tenths.
  2. The second place is hundredths. Seven is in that place.
  3. Seven hundredths is 0.07.
0.07 metre, or seven hundredths of a metre.
Example 2

Build a number from parts

Write the decimal with six ones, two hundredths and nine thousandths.

  1. There are no tenths, so put zero in the tenths place.
  2. Place two in the hundredths position and nine in the thousandths position.
  3. Keep six in the ones place.
6.029.

Check your understanding

Write forty-three thousandths as a decimal.

Show answer

0.043

There are zero tenths, four hundredths and three thousandths.

03 / WORKSHEET

Your turn

6 questions · 10 marks · Work at your own pace.

Read the questions online
  1. What is the value of 8 in 5.081?
    1 mark
  2. Write seven hundred and six thousandths as a decimal.
    1 mark
  3. Write 3.406 in expanded decimal notation.
    2 marks
  4. Write a decimal with two ones, five hundredths and one thousandth.
    2 marks
  5. Are 0.7 and 0.700 equal? Explain with place value.
    2 marks
  6. Mila deletes the zero in 2.047 and gets 2.47. Explain how the digit 4 changed value.
    2 marks
Read the worked solutions

Equivalent correct methods earn the corresponding marks. Include units where asked.

  1. What is the value of 8 in 5.081?
    1 mark

    Eight is in the hundredths place.

    0.08
  2. Write seven hundred and six thousandths as a decimal.
    1 mark

    Seven hundred and six thousandths is 7061000.

    0.706
  3. Write 3.406 in expanded decimal notation.
    2 marks

    Three ones, four tenths, zero hundredths and six thousandths.

    3+0.4+0.006
  4. Write a decimal with two ones, five hundredths and one thousandth.
    2 marks

    No tenths are given, so use zero in the tenths place.

    2.051
  5. Are 0.7 and 0.700 equal? Explain with place value.
    2 marks

    Seven tenths is seventy hundredths or seven hundred thousandths. Trailing zeros rename the same value.

    Yes.
  6. Mila deletes the zero in 2.047 and gets 2.47. Explain how the digit 4 changed value.
    2 marks

    In 2.047 the four is in the second decimal place.

    In 2.47 it is in the first decimal place.

    It changed from four hundredths to four tenths, becoming ten times as large.
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Curriculum reference & lesson scope

Australian Curriculum v9.0; SA Curriculum Mathematics 2026

Beyond hundredths; ordering/number lines; familiar fraction–decimal–percentage equivalents.

Official curriculum source ↗
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