Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
31 * 13 * 7 * 54 * 12 * 4 * 20
1
=, ÷, -, × , +, -
2
+, × , -, =, × , +
3
-, -, =, × , +, ÷
4
+, -, =, × , -, +
Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
31 * 13 * 7 * 54 * 12 * 4 * 20