few_shots: 
Example:
Problem/activity:
Find the general solution for:
$${\mathrm{cos}\left({\pi\over2}+x\right)=\mathrm{tan}{\pi\over4}}$$


Concept/skill: 
Prove the addition and subtraction formulas for sine, cosine, and tangent and use them to solve problems.

Answer: 
Yes. An initial step when solving for x in this problem requires the use of the addition formula for cosine on the left side of the equation.

Now, assess whether the following problem or activity is 'aligned' with the given Common Core standard in Mathematics.

shot_info: fl_problem_001894_pos_0

HS_0
standard_description: Use place value understanding to round whole numbers to the nearest 10 or 100.
problem_activity: Task
Plot the following numbers on the number line:
80
328
791
[IMG]
Round each number to the nearest 100. How can you see this on the number line?
Round each number to the nearest 1000. How can you see this on the number line?


aligns: yes