Find the missing number in the following series. 4, 1, -8,_______,-20, 29, -32, 43

Answer 1

List of numbers 1 -8 ? -20 29 -32 43 (If ? = -14, difference numbers are underlined)

Difference of numbers -9 -6 -6 -49 -61 75

The trend seems to be

-8 - (-9) = 1

29-(-49) = -20

-32-(-61) = 29

43-75 = -32

Let's try -14 as the missing number, then

-20-(-6) -14

-14-(-6) = -8 This seems to work, so the missing number (?) = -14