Final answer:
To divide 72 by 4 using repeated subtraction, subtract 4 from 72 until the result becomes 0. The process yields 18 as the quotient.
Step-by-step explanation:
To divide 72 by 4 using repeated subtraction, we start by subtracting 4 from 72: 72 - 4 = 68. We continue subtracting 4 from the result until we can no longer do so.
68 - 4 = 64
64 - 4 = 60
60 - 4 = 56
56 - 4 = 52
52 - 4 = 48
48 - 4 = 44
44 - 4 = 40
40 - 4 = 36
36 - 4 = 32
32 - 4 = 28
28 - 4 = 24
24 - 4 = 20
20 - 4 = 16
16 - 4 = 12
12 - 4 = 8
8 - 4 = 4
4 - 4 = 0
Therefore, 72 divided by 4 is equal to 18.