Arithmetic of Computers

Arithmetic of Computers

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Lesson 4

Practice Makes Perfect

Prowess with powers

Page 138

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Your answer :
3(80) = 3.
You are correct. Any number with a 0 exponent equals 1 (unless the base number is 0, of course). So 80 = 1, and therefore
3(80) = 3(1) = 3.
Well, this is too easy. Let’s complicate the problem a little. What is 4(61) + 3(60)?
Answer :
4(61) + 3(60) = 42.

Go to Page 126

4(61) + 3(60) = 24.

Go to Page 131

4(61) + 3(60) = 27.

Go to Page 134

Answer to Self-Test Question 5, Lesson 4 :
a. 1; b. 2; c. 5; d. 8.

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