The next number in the series 10, -5, 25, -35, 85, -155 is:
27
27
175175
-26.You are subtracting each number in the series by 25 to find the next number.So 49 - 25 = 2424 - 25 = -1And -1 - 25 = -26The next number would then be -26 - 25 = -51etc...
27
25
49, 36, 25...
what number comes next 1 -8 -16 -24 -33
25
81
Ten.