234 * 345 * 456 * 567 * 678 * 12

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.

234 * 345 * 456 * 567 * 678 * 12

(a) −, +, +, −, =

(b) ÷, −, +, −, =

(c) +, ×, +, −, =

(d) +, −, +, −, =

Sol:

234 * 345 * 456 * 567 * 678 * 12

Put the signs form option D