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R9 Percentage problems including reverse percentages

Currently Secure · last touched 2026-09-12

Every change

WhenChangeEvidenceSession
2026-09-14Secure → Secure12 Sep starter: jacket reduced 30% to £63, original £90 via 63 ÷ 0.7. Non-round reverse percentage, correct.session 23
2026-09-07Secure → Secure4 Sep starter: £36 after a 25% reduction, original price £48, correct non-calculator.session 6
2026-09-03Secure → Secure2 Sep starter: £45 after a 20% reduction, original price £56.25, correct. Division line 45 ÷ 0.8 not written down.session 2

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