SOLUTION: Replace each question mark with one of the four main mathematical signs (+- x /), two of them twice, to complete the equation.
3?1?4?1?5?9?2 = 6
Question 768473: Replace each question mark with one of the four main mathematical signs (+- x /), two of them twice, to complete the equation.
3?1?4?1?5?9?2 = 6 Answer by MathLover1(20850) (Show Source):