Multiplication Tables - Matching Cards

Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.

Calculation 2000

Weekly Problem 49 - 2013
What is the value of 2000 + 1999 × 2000?

Pairing Up

Weekly Problem 14 - 2008
The numbers 72, 8, 24, 10, 5, 45, 36, 15 are grouped in pairs so that each pair has the same product. Which number is paired with 10?

Thousands and Millions

Stage: 3 Challenge Level:

Do human beings live for as long as a million hours?

If you have been alive for a million seconds, how many birthdays have you had?

What year was it one billion minutes ago?

How long would it take to count to a million?

Suppose you were worth your weight in £1 coins. How much would you be worth?

Could you fit the population of London into one hundred thousand double-decker buses?

Could you run one thousand metres in one minute?

Could you eat exactly one tonne of food in a year without altering your weight dramatically?

Could you walk as much as one hundred thousand miles during your lifetime?

Could one thousand drink cans fit into one cubic metre?

The questions are taken from Tony Gardiner's Maths Challenge, Book 1, Oxford University Press 2000.