standard_description: Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product.
problem_activity: Problem 1
The number 234 is multiplied by 10. What is the value of the 2 in the product?
Problem 2
In which number does the 2 represent a value 10 times the value represented by the 2 in 82,401?


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