Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.2 - Place Value, Names for Numbers, and Reading Tables - Exercise Set - Page 15: 48

Answer

In expanded form, 789 is 700 + 80 + 9.

Work Step by Step

Look at the digits places of the number. Since there are 3 places and the first number is 7, write 700. Then, the number in the tens place is 80. Finally, the number in the ones place is 9, so the answer is 700 + 80 + 9.
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