Arithmetic of Computers

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Lesson 8

Octal Arithmetic

The sum gets a bonus

Page 283

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Your answer :

226₈ × 12₈ = 2, 712₈.

No. You did the whole thing in the decimal system. We’re working in the octal system.

2₈ × 6₈ = 14₈, so

226₈ × 12₈ 454₈ 226₈

Now add up the partial products shown above by octal arithmetic; the return to page 267 and choose the right answer.