What are the highest and lowest numbers you can possibly score? 7 ? 4 ? 9 ? 3 ? 8 =

Question

Calculate the numbers below in the order shown, do not change the order of the numbers.

Replace each question mark with a mathematical sign. Plus, minus, multiply and divide can each be used once only.

What are the highest and lowest numbers you can possibly score?

7 ? 4 ? 9 ? 3 ? 8 =

Answer 1

7 (/) 4 (-) 9 (+) 3 (x) 8 = -34 {Lowest}
7 (/) 4 (+) 9 (-) 3 (x) 8 = 62 {Highest}.

Answer 2

Lowest:
7x4/9+3-8= -17/9

Highest:

7+4x9-3/8=42+5/8