Concept explainers
Beth knows the divisibility test for 3. Beth says that she can tell just by looking, and without doing any calculations at all, that the number 999,888,777,666,555,444,333,222, 111 is divisible by 3. How can Beth do that? Explain why it’s not just a lucky guess.
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Check out a sample textbook solutionChapter 8 Solutions
Mathematics for Elementary Teachers with Activities Plus MyLab Math -- Title-Specific Access Card Package (5th Edition)
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