Page 61 - Basic College Mathematics with Early Integers
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38 C HAPTE R 1 I THE WHOLE NUMBERS
Identify each answer as correct or incorrect. Use addition to check. If the answer is incorrect, then write the correct answer.
97. 741 98. 478 99. 1029 100. 7615
- 56 - 89 - 888 - 547
675 389 141 7168
Fill in the missing digits in each problem.
101. 526 102. 10, 4
- 2 85 -85 4
28 4 710
103. Is there a commutative property of subtraction? In 104. Explain why the phrase “Subtract 7 from 10”
other words, does order matter when subtracting? translates to “10 - 7.”
Why or why not?
105. The local college library is having a Million Pages of Reading promotion.The freshmen have read a total of
289,462 pages; the sophomores have read a total of 369,477 pages; the juniors have read a total of 218,287
pages; and the seniors have read a total of 121,685 pages. Have they reached a goal of one million pages?
If not, how many more pages need to be read?
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