When the answer is 100

Using the digits from 1 to 9 in ascending order

100 = 123 + 45 - 67 + 8 - 9

100 = 123 + 4 - 5 + 67 - 89

100 = 123 - 45 - 67 + 89

100 = 123 - 4 - 5 - 6 - 7 + 8 - 9

100 = 12 + 3 + 4 + 5 - 6 - 7 + 89

100 = 12 + 3 - 4 + 5 + 67 + 8 + 9

100 = 12 - 3 - 4 + 5 - 6 + 7 + 89

100 = 1 + 23 - 4 + 56 + 7 + 8 + 9

100 = 1 + 23 - 4 + 5 + 6 + 78 - 9

100 = 1 + 2 + 34 - 5 + 67 - 8 + 9

100 = 1 + 2 + 3 - 4 + 5 + 6 + 78 + 9

100 = (-1) + 2 - 3 + 4 + 5 + 6 + 78 + 9