Working out percentages without a calculator might seem tricky, but... Show more
Maths344 views·Updated May 18, 2026·1 pageCalculating Percentages of an Amount Made Easy
Kacie-Marie Williams@kaciemariewilliams_fdeo
1
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Finding Percentages Without a Calculator
Finding percentages becomes much easier when you use the building block method. Start with 10% (just divide by 10), then build up to whatever percentage you need.
For 15% of £65, you'd find 10% first by dividing £65 by 10, giving you £6.50. Then get 5% by halving the 10% amount (£6.50 ÷ 2 = £3.25). Add them together: £6.50 + £3.25 = £9.75.
For trickier percentages like 32%, break it down into 30% + 2%. Find 10% of £41 (£4.10), multiply by 3 for 30% (£12.30). Then find 1% by dividing by 100 (£0.41), multiply by 2 for 2% (£0.82). Finally, add: £12.30 + £0.82 = £13.12.
Quick Tip: Remember that 10% = divide by 10, 5% = half of 10%, and 1% = divide by 100. These are your building blocks for any percentage!
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Maths344 views·Updated May 18, 2026·1 pageCalculating Percentages of an Amount Made Easy
Kacie-Marie Williams@kaciemariewilliams_fdeo
Working out percentages without a calculator might seem tricky, but it's actually quite straightforward once you learn a few clever tricks. The key is breaking down any percentage into simple chunks like 10%, 5%, and 1% that are easy to... Show more
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Finding Percentages Without a Calculator
Finding percentages becomes much easier when you use the building block method. Start with 10% (just divide by 10), then build up to whatever percentage you need.
For 15% of £65, you'd find 10% first by dividing £65 by 10, giving you £6.50. Then get 5% by halving the 10% amount (£6.50 ÷ 2 = £3.25). Add them together: £6.50 + £3.25 = £9.75.
For trickier percentages like 32%, break it down into 30% + 2%. Find 10% of £41 (£4.10), multiply by 3 for 30% (£12.30). Then find 1% by dividing by 100 (£0.41), multiply by 2 for 2% (£0.82). Finally, add: £12.30 + £0.82 = £13.12.
Quick Tip: Remember that 10% = divide by 10, 5% = half of 10%, and 1% = divide by 100. These are your building blocks for any percentage!
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