Question

Make the numbers from 1 to 20 using the numbers 1 9 8 4​

Answer 1

9-1+8+4

Explanation:

9-1=8

use that 8 and add the other 8 to make 16

now add the 4. 16+4=20

Answer 2

1, 4, 8, 9, 11, 14, 18, 19