Exponents & scientific notation

The Power Towern

A power is repeated multiplication. Work one out and see why a0 = 1 and a−n = 1/an, simplify with the exponent laws, write very big and very small numbers in scientific notation and work with them, and find square and cube roots — with the reason for every step.

Make a problem for me — pick what goes in it
Try

The work

Say it out loud

    Every number is worked out exactly, so 260 and 10−12 come out to the last digit. Powers inside a longer problem? Work it on ( ). Breaking a number into primes? See the factor tree.