Answer:
Step-by-step explanation:
This is college math, so we know a calculator is part of your required equipment. If you don't know how to use yours, read the manual and work through the sample problems.
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All of these problems can be done mentally, so there is no "work" to show. If you're looking for long division, you need to consider there are at least two or three different ways that long division is taught. The "work" will differ, depending on the method you want to see.