median
don steward
mathematics teaching 10 ~ 16

Tuesday, 25 March 2014

percentages to simplest fractions

an opportunity to look at the difference of two squares
 which looks like it might be 50%?

the eighths make for interesting decimals and percentages...




an easy task if someone thinks to divide the percentage into 100 but intended as a trial and improvement (with a calculator) exercise

with some estimation

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