Which two numbers (not digits) and two signs need to be interchanged to make the given equation correct?
14 + 7 ÷ 729 × 81 - 9 = 500
- ((a))
81 and 9, ÷ and ×
- ((b))
14 and 9, - and ×
- ((c))
7 and 729, + and -
- ((d))
81 and 7, + and ×
Show Answer
81 and 9, ÷ and ×