LESSON

PRACTICE EXERCISE

ANSWER KEY AND FEEDBACK

Item

Correct Answer and Feedback

1.

8

3, repres. by 7 x103

2.

one (8 x 101)

3.

zero (7 x 100)

4.

5.

The number after 7 in the octal system is written as 10. It has the same value as

the base ten value 8, but since 8 is not included in the octal system, it must

proceed to the lowest 2-digit number, or 10.

6.

1510 is the value of the highest single-digit number in the base 16, or

hexadecimal, numbering system. If you were familiar with the notation already,

you could have answered "F', which is the usual hexadecimal notation for the

value 1510. You could also have written ">F" or "Fh", which are both common

ways of showing that F is in the base 16 numbering system.

7.

1008

8.

a.

5648

b.

13528

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