Answer:
1-20: Make it 1 unit tall
21-40: Make it 5 units tall
41-60: Make it 2 units tall
61-80: Make it 2 units tall
81-100: Make it 4 units tall
Step-by-step explanation:
1-20: 8 (1 number)
21-40: 22, 25, 31, 36, 38 (5 numbers)
41-60: 46, 50 (2 numbers)
61-80: 62, 69 (2 numbers)
81-100: 84, 84, 87, 90 (4 numbers)
