Arithmetic of Computers

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Lesson 7

Decimals to Octals

. . . and back again

Page 222

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Your answer :

58₁₀ = 72₈ 825₁₀ = 1, 471₈ 354₁₀ = 542₈ ⎫⎪⎬⎪⎭ This set contains a mistake.

Well, let’s check:

0 , r = 7 8)7 , r = 2 8)58 so, 58₁₀ = 72₈; 0 , r = 1 8)1 , r = 4 8)12 , r = 7 8)103 , r = 1 8)825 so, 825₁₀ = 1, 471₈; 0 , r = 5 8)5 , r = 4 8)44 , r = 2 8)354 so, 354₁₀ = 542₈.

They’re all correct. Now return to Page 237 and try again.