Page 132 - Math Course 1 (Book 1)
P. 132
Multiplying and Dividing Monomials
FOLDING PAPER If you fold a sheet of paper in half, you have a thickness of 2 sheets. Folding
again, you have a thickness of 4 sheets. Continue folding in half and recording the thickness.
How many times thicker is a sheet that has been folded 4 times than a sheet that has not been folded?
Write a division expression to compare the thickness.
2 4 = 2 4 - 0 Subtract the exponents.
2 0
4
= 2 or 16
Answer So, the paper is 16 times thicker.
Your Turn!
Divide Powers
6 5 r 4
Find Find
6 3 r 1
A. 6 2 A. r 4
B. 6 8 B. 1 4
C. 6 –2 C. r 3
D. 6 15 D. r 5
Answer Answer
RACING Car A can run at a speed of 28 miles per hour and car B runs at a speed of 27 miles per hour.
How many times faster is car A than car B?
A. 2 15
B. 2
C. 2 56
D. 2 2
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