standard_description: Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
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?


aligns: no