By interchanging the given two signs which of the following equation will be not correct?
× and -
1
15 + 5 ÷ 1 - 9 × 4 = 70
2
5 - 6 × 3 + 16 ÷ 4 = 31
3
11 + 6 × 3 - 8 ÷ 2 = 5
4
15 - 4 × 3 + 6 ÷ 1 = 63
By interchanging the given two signs which of the following equation will be not correct?
× and -