Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
14 * 1 * 15 * 75 * 21 = 30
1
÷, −, +, ×
2
×, ÷, +, −
3
−, ×, +, ÷
4
−, ÷, ×, +
Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.
14 * 1 * 15 * 75 * 21 = 30