standard_description: Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other. For example, estimate the population of the United States as 3 × 108 and the population of the world as 7 × 109, and determine that the world population is more than 20 times larger.
problem_activity: Problem 1
The value of the digit 7 in the number 17.48 is 10 times the value of the digit 7 in which number?
Problem 2
Sonya is trying to solve for the missing value in the equation 93.6 × _____ = 93,600. Sonya claims that the answer is 100 because there are two zeros at the end of 93,600 and multiplying by ten results in an extra 0 at the end of the number, so multiplying by 100 would results in two zeros at the end of the number.
Explain why Sonya’s reasoning is incorrect.
Find the correct solution. Show or explain your work.


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