Final answer:
The missing number in the subtraction sequence is 60. The sequence is 968 - 10 = 96 R8, then 96 - 60 = 36, fitting the pattern in the provided series of subtractions.
Step-by-step explanation:
The question is asking for the missing number in the subtraction sequence provided. The subtraction shown starts with 968 and subtracts 10 to get 96 with a remainder of 8, which is then followed by two subtraction steps with missing numbers. To continue the sequence, we should subtract numbers in a way that the next steps result in progressively smaller whole numbers with appropriate remainders if necessary.
By analyzing the pattern, we see that the next subtraction after 10 is likely a tens digit followed by a zero, as in the next step -90, and then it progresses to a more significant subtraction of -60. The missing number 60 fits the pattern logically, leading to the sequence: 968 - 10 = 96 R8, then 96 - 60 = 36, and so on.
Therefore, the correct answer is B. 60.