Indices

A couple of nice indices questions; what's going on here? Can you make another question like this?! PDF here.

Intelligent variation examples ('my turn') and questions ('your turn') on rationalising the denominator. Includes answers. PDF here.

GCSE, set of standard form exercises.

A selection of 11 real life questions based on observations from the Hubble Space Telescope involving standard form. By no means easy this uses GCSE maths to find out real facts about the solar system and universe, just like astronomers do.

Questions on the powers of two. Answers included. List of powers of two.

How the rules of indices work. Follow them and you can't go wrong!

Pupils fill in the 2-5 index powers of the numbers 1-10.

Straightforward worksheet that builds indices concepts from simple beginnings as it goes. From 32 through to standard form. Includes answers.

Evaluate the indices (includes answers) and simplify the indices. PDF here. More indices questions.

Animated gif demonstrating why standard form is useful. Goes from 10 to the power 23, 10million light years away from the Milky Way, through to 10 to the power -16, examining quarks!

A good flash animation version of the animated gif (above). Only positive powers however.

Arrange the 14 images in order of size, biggest to smallest (grab them, move them around). When you're done check your answer on the second slide. There's also links to the website from which the activity came and the original 1970's video on YouTube.