Which two signs should be interchanged to make the given equation correct?
551 ÷ 19 − 16 × 12 + 121 = 100
1
− and ×
2
+ and ×
3
÷ and ×
4
+ and −
Which two signs should be interchanged to make the given equation correct?
551 ÷ 19 − 16 × 12 + 121 = 100