Brainteasers

30th September 2005 at 01:00
Nico's cards

Nico has four number cards. Each card is different. Each card is less than 9. The four cards add up to 18. What are they? Find seven ways to do it.

Fractions to decimals

What fraction, when you turn it into a decimal, starts: 0.010989 ...

What fraction, when you turn it into a decimal, starts: 0.0188679 ...

SOLUTIONS Nico's cards (ages 6 to 9): Four cards with a total of 18 could be: 1, 2, 7, 8; 1, 3, 6, 8; 1, 4, 5, 8; 1, 4, 6, 7; 2, 3, 6, 7; 2, 4, 5, 7; 3, 4, 5, 6. Fractions to decimals (ages 11-16): Recognising that the first fraction is a little more than one hundredth and that the second one is a little less than one fifitieth leads to the two fractions 191 and 153.

Subscribe to get access to the content on this page.

If you are already a Tes/ Tes Scotland subscriber please log in with your username or email address to get full access to our back issues, CPD library and membership plus page.

Not a subscriber? Find out more about our subscription offers.
Subscribe now
Existing subscriber?
Enter subscription number

Comments

The guide by your side – ensuring you are always up to date with the latest in education.

Get Tes magazine online and delivered to your door. Stay up to date with the latest research, teacher innovation and insight, plus classroom tips and techniques with a Tes magazine subscription.
With a Tes magazine subscription you get exclusive access to our CPD library. Including our New Teachers’ special for NQTS, Ed Tech, How to Get a Job, Trip Planner, Ed Biz Special and all Tes back issues.

Subscribe now