Time: 60s
Score: 0
Level: 1
Best: --

Mental Math Sprint

Zip is out shopping with no calculator. Discounts, tips, split bills, unit prices and change: pick the right answer out of four, as many times as you can in 60 seconds.

Mental Math Sprint

Zip is out shopping with no calculator. Work out discounts, tips, split bills, unit prices and change, and pick the right amount out of four. Every 3 right in a row, the sums get harder and score more. A wrong answer costs 2 seconds. You have 60 seconds.

60 s
Mental maths

How to play

Work it out. Each question is an everyday sum: a discount, a tip, a split bill, a unit price or the change from a note.
Answer. Tap one of the four amounts, or press 1 to 4.
Level up. Every 3 right answers in a row, the sums get harder. A wrong answer costs 2 seconds, sends you back to level 1 and shows how to work it out.
Score. 10 points a right answer at level 1, then 15, 20 and 25 at levels 2, 3 and 4.

Quick tips

Find 10% first. Move the decimal point one place: 10% of £45 is £4.50. Double it for 20%, halve it for 5%.
Use quarters and halves. 25% off is a quarter off; 50% off is half price. Easy fractions beat long multiplication.
Count up for change. From £13.45 to £20: 55p makes £14, then £6 more. That's £6.55.
Split in steps. £84 between 3? Split £60 (£20 each) and £24 (£8 each): £28.
Read the question. "What do you pay?" and "How much off?" give different answers, and both are among the options.