Question 3
What fundamental operations, in chronological order, will make the equation correct when entered into a calculator?
$121\;\square\;75\;\square\;72\;\square\;9=54$
Editorial interpretation: use a calculator that follows ordinary operation precedence. Enter the three operation signs from left to right.
$121\;\square\;75\;\square\;72\;\square\;9=54$
Editorial interpretation: use a calculator that follows ordinary operation precedence. Enter the three operation signs from left to right.