Question

use 0 to 9 once to make 1​

Answer 1

Step-by-step explanation:

Divide the numbers into sums of 1, then adding and subtracting them

(9-8)-(7-6)+(5-4)-(3-2)+(1-0) = 1

Simpler idea: Divide the numbers into sums of 1, then multiplying them.

(9-8)*(7-6)*(5-4)*(3-2)*(1-0) = 1

Idea: Take one sum of 1 and multiply that with a fraction with numerator = denominator

(5-4)*((9+0)*(8+1))/((7+2)*(6+3)) = 1

Idea: Take the “largest number in the world” (much larger than all the atoms in the universe) to the power of 0. The result is still only 1.

(987654321!)^0 = 1

Hope  it helps you!!!