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Oak MathsTest · Maths

Finding the original amount after an increase

The starter and exit quiz of the lesson “Finding the original amount after an increase”, from the unit “Understanding multiplicative relationships: percentages and proportionality” (Year 8 Maths) by Oak National Academy.

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Oak National Academy

12 questions

  1. A multiplier is the decimal equivalent of a __________.
  2. Match each question to the correct multiplier.
  3. Which of the following is the correct calculation for calculating 360 increased by 5%?
  4. 240 increased by 2% is ___.
  5. 240 decreased by 20% is ___.
  6. A box of washing powder contains 20% extra free. The box usually contains 6.5 kg. The special offer box contains ___kg.
  7. ‘Of’ can be exchanged for which operation in maths?
  8. A number is increased by 20%. One part is 20%. What is the total number of parts representing the new number?
  9. The cost of a TV increases by 15%. The new price is £460. What was the cost of the TV before the price increase? Without calculating the answer, decide whose answers cannot possibly be correct?
  10. Alex thinks of a number and increases it by 5%. His new number is 252. What was Alex's original number?
  11. The cost of a TV increases by 15%. The new price is £460. The cost of the TV before the price increase was £___.
  12. This year the cost of a concert ticket is £94.50. This is an increase of 26% on last year. The cost of the ticket last year was £___.

License: OGL

Finding the original amount after an increase · Examplary