The answer is B or 58.5 without an explanation
with one:
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At the very bottom it has the subtraction problem:
68
-64
04 is the answer for that, but 8 cant go into 4 so you must add a decimal and 0 after the dividend so it would make 468.0
Now, bring down the zero to make the 4, 40.
8 goes into 40: 5 times
Last, the answer from before (58) you need to line up the decimal from 468.0.
Make it 58, now, add the 5 AFTER the decimal in 58. to make it 58.5
Thus, your answer.
Hope this helps
