Select the correct combination of mathematical signs that can sequentially replace the * sign and make the given equation correct.
(525 * 15) * 2 * 20 = 181 * (11 * 4) * 135
1
÷, +, -, +, ×, -
2
×, -, +, ÷, ×, +
3
÷, ×, +, +, ×, -
4
-, ×, ÷, ×, +, -
Select the correct combination of mathematical signs that can sequentially replace the * sign and make the given equation correct.
(525 * 15) * 2 * 20 = 181 * (11 * 4) * 135