Year 4 Maths – Understand Denominators of 10 and 100 KS2 Revision
What you need to know
Things to remember:
- A fraction is a division, with the top number divided by the bottom number.
- A 10 on the bottom means we divide by 10.
- A 100 on the bottom means we divide by 100.
Remember, we have fancy names for the numbers in a fraction:
\frac{5}{100} = \frac{\leftarrow Numerator}{\leftarrow Denominator}
A fraction is a way of writing a division, with the top being divided by the bottom.
Let’s start with 10ths
\frac{5}{10}= 5\div10=0.5
\frac{70}{10}= 70\div10=7
\frac{80}{10}= 80\div10=8
\frac{120}{10}= 120\div10=12
How about 100ths?
\frac{500}{100}= 500\div100=5
\frac{700}{100}= 700\div100=7
\frac{1000}{100}= 1000\div100=10
\frac{200}{100}= 200\div100=2
Example Questions
Question 1: What does \dfrac{30}{10} mean?
A: 30\div10
B: 10\div30
C: 30\div100
D:100\div30
E:100\div10
\dfrac{30}{10} means 30\div10
Question 2: What does \dfrac{600}{100} mean?
A: 10\div100
B: 60\div100
C: 600\div100
D: 100\div600
E: 10 \div100
\dfrac{600}{100} means 600\div100
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