Arithmetic of Computers

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Lesson 4

Practice Makes Perfect

Prowess with powers

Page 127

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Your answer :

2(4²) + 3(4¹) + 2(4⁰) = 45.

You went wrong somewhere. Let’s check your arithmetic:

2(4²) = 2(4 × 4) = 32 + 3(4¹) = 3(4) = + 12 + 2(4⁰) = 2(1) = + 2

Now, what is the sum of these products?

Return to page 134 and pick out the right answer.