Which two signs should be interchanged to make the below equation mathematically correct?
24 + 36 - 81 × 9 ÷ 2 = 42
1
÷ and -
2
× and +
3
÷ and ×
4
+ and -
Which two signs should be interchanged to make the below equation mathematically correct?
24 + 36 - 81 × 9 ÷ 2 = 42