Which of two sign should be reciprocated to correct the following equation?
249 ÷ 13 - 559 + 391 × 17 - 1991 = 710
1
- and +
2
÷ and ×
3
+ and ÷
4
× and +
Which of two sign should be reciprocated to correct the following equation?
249 ÷ 13 - 559 + 391 × 17 - 1991 = 710