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Business maths

The sums that come up at work, one method at a time: percentages, VAT, discounts, mark-up and margin, rounding, averages, ratios and interest.

Easy4 of 4 modules open16 rooms
Module 1

Percentages

Work out a percentage of an amount, a rise or a cut, the amount before a change, and the gap between two rates.

  1. 1How to work out a percentage of an amount9 min, easy
  2. 2Percentage increase and decrease10 min, easy
  3. 3Finding the original amount before an increase9 min, medium
  4. 4Percentage points and percentages8 min, medium
Recap this moduleSix questions, starting with the ones you got wrong.
Module 2

VAT and prices

Add VAT to a price and take it back out, work out discounts and sale prices, and tell mark-up from margin.

  1. How to add VAT to a price8 min, easyPremium
  2. How to take VAT out of a price9 min, mediumPremium
  3. Discounts and sale prices10 min, easyPremium
  4. Mark-up and margin9 min, mediumPremium
Module 3

Rounding and averages

Round money and large figures the right way, and find the mean, the median and the mode of a set of figures.

  1. Rounding money9 min, easyPremium
  2. Rounding to significant figures10 min, mediumPremium
  3. The mean9 min, easyPremium
  4. The median and the mode9 min, easyPremium
Module 4

Ratios and interest

Share an amount in a ratio, compare prices by the unit, and work out simple and compound interest on a loan or savings.

  1. Sharing in a ratio10 min, easyPremium
  2. Unit prices and best buys9 min, easyPremium
  3. Simple interest9 min, easyPremium
  4. Compound interest10 min, mediumPremium