how do i work out 4.5 (with a little 2 above the 5)? i been told this means squared?
^ how do you work out 4.5 x 4.5?*
3 Answers

On a calculator

half of 4.5 is 2.25 so 4.5+4.5+4.5+4.5+2.25 = 20.5
or use the squared button on a calculator which usually looks like an x with a little 2 above it. you just press 4.5 then the squared button then =

Yes, itâ€™s 4.5 squared, i.e. 4.5 x 4.5.
Work in two stages thus:
4 x 4.5 = 18
0.5 x 4.5 = 2.25
Then add your two answers
18 + 2.25 = 20.25