Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
2 * 7 * 3 * 21 * 2 * 23
1
×, –, +, =, ×
2
×, ×, –, +, =
3
×, ×, =, +, –
4
+, +, +, = , +
Select the correct combination of mathematical signs to replace the * signs and to balance the given equation.
2 * 7 * 3 * 21 * 2 * 23