Decimals
UK Primary (3-6)
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Numbers, words and symbols (tenths/hundredths)
Lesson

If you had an apple and you cut it into $2$2 equal pieces to share with a friend, how much would each of you get? You would each get half an apple. One half is an example of a number that is less than one whole. It can be written as $\frac{1}{2}$12 as a fraction or $0.5$0.5 as a decimal.

We can express a part of a whole in words, or we can use numbers and symbols (e.g. fractions or decimals).

Watch this video to see how.

 

Worked examples

Question 1

How do we write the number $0.89$0.89 in words?

  1. eighty nine

    A

    eighty nine tenths

    B

    eighty nine hundredths

    C

    eighty nine thousandths

    D

    eighty nine

    A

    eighty nine tenths

    B

    eighty nine hundredths

    C

    eighty nine thousandths

    D

Question 2

Look at the diagram.

  1. How many squares are shaded in total?

  2. What part of the grid is coloured in yellow?

    Give your answer as a:

    Written Expression $\editable{}$ out of $100$100
    Fraction $\frac{\editable{}}{100}$100
    Decimal $0.$0.$\editable{}$
  3. What part of the grid is coloured in blue?

    Give your answer as a:

    Written Expression $\editable{}$ out of $100$100
    Fraction $\frac{\editable{}}{100}$100
    Decimal $0.$0.$\editable{}$
  4. What part of the grid is coloured in red?

    Give your answer as a:

    Written Expression $\editable{}$ out of $100$100
    Fraction $\frac{\editable{}}{100}$100
    Decimal $0.$0.$\editable{}$
  5. How many squares are shaded in total?

    Give your answer as a:

    Written Expression $\editable{}$ out of $100$100
    Fraction $\frac{\editable{}}{100}$100
    Decimal $\editable{}$

Question 3

We want to write "$690$690 hundredths" as a decimal.

  1. Which of the following statements is true?

    $6.9$6.9 and $6.90$6.90 are different values

    A

    $6.9$6.9 is a simpler way of writing $6.90$6.90

    B

    $6.90$6.90 is a simpler way of writing $6.9$6.9

    C

    $6.9$6.9 and $6.90$6.90 are different values

    A

    $6.9$6.9 is a simpler way of writing $6.90$6.90

    B

    $6.90$6.90 is a simpler way of writing $6.9$6.9

    C

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