options: Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations.

Use place value understanding to round whole numbers to the nearest 10 or 100.

Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
problem_activity: Problem 1
a.   What do you notice? What do you wonder?
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b.   Determine the value of the point on each number line in Part (a) above.
Problem 2
a.   Label each point with the value it represents.
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b.   Locate and label each number on the number line. Label the intervals with the numbers they represent if it helps.
60
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897
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364
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Problem 3
a.   Plot 55 on a number line from 50 to 60.
b.   Plot 55 on a number line from 0 to 100.
c.   Plot 55 on a number line from 0 to 1,000.


correct_option_index: 1