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12. Ted thinks that because 10 x 10 = 100 and 2x5=10, he should be able to calculate 12 x 15 by adding 100+10 to get 110. Explain to Ted in two different ways that, even though his method is not correct, his calculations can be part of a correct way to calculate 12 x 15 by writing equations that use the distributive property.

12. Ted thinks that because 10 x 10 = 100 and 2x5=10, he should be able to calculate 12 x 15 by adding 100+10 to get 110. Explain to Ted in two different ways that, even though his method is not correct, his calculations can be part of a correct way to calculate 12 x 15 by writing equations that use the distributive property.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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12. Ted thinks that because 10x10=100 and 2x5=10, he should be able to calculate 12x15 by adding 100+10 to get 110. Explain to Ted in two different ways that, even though his method is not correct, his calculations can be part of a correct way to calculate 12 x 15 by writing equations that use the distributive property.
Transcribed Image Text:12. Ted thinks that because 10x10=100 and 2x5=10, he should be able to calculate 12x15 by adding 100+10 to get 110. Explain to Ted in two different ways that, even though his method is not correct, his calculations can be part of a correct way to calculate 12 x 15 by writing equations that use the distributive property.
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