lesson
Useful fraction-decimal matches
1 · Learn
One half is five tenths, so 1/2 = 0.5. One quarter is twenty-five hundredths: 1/4 = 0.25. Three quarters is 0.75.
These matches help with measures and money. A quarter of one pound is 25p, but a quarter of a different whole will be a different amount.
2 · Worked example
Three quarters of one metre is 75 cm because a metre is 100 cm. That length is 0.75 m.
3 · Your turn
Write one half and three quarters as decimals. How many pence is a quarter of £2?
Check your answer
0.5 and 0.75. A quarter of £2 is 50p, not 25p.
4 · Apply your learning
Use a hundred grid to justify all three decimal matches rather than only memorising them.
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Use practical or drawn representations and explain the method. Check units and labels. A correct answer to one example is not evidence of secure fluency; revisit with varied numbers and feedback.
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