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Chapter 5.4, Problem 7P

Calculate 8 × 123 , 456 , 123 , 456 using a calculator. What pattern do you see in the digits of the answer? Can you guess what the answer to 8 × 123 , 456 , 123 , 456 will be? What about 8 × 123 , 456 , 123 , 456

Use powers of 10 and the distributive property to explain why your guesses must be right.

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Chapter 5 Solutions

Mathematics for Elementary Teachers with Activities, Loose-Leaf Version Plus MyLab Math -- Access Card Package (5th Edition)

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