Lemma
EasyDecimals & percentages
#96 · Arithmetic · Decimals & percentages

A percentage swap

Compute of in your head. (Hint: is it the same as of ?)

~1 minAnswer checked instantlyCommutativity
Stuck? A gentle nudge
Something off?
Workspace
Your answer
Loading the math keyboard…

Type naturally — sqrt, pi, / and ^ become notation. Any equivalent form is accepted. Press Enter to check.