standard_description: Count forward beginning from a given number within the known sequence (instead of having to begin at 1).
problem_activity: Task
Jillian says
I know that 20 times 7 is 140 and if I take away 2 sevens that leaves 126. So 126 $\div$ 7 = 18.
Is Jillian's calculation correct? Explain.
Draw a picture showing Jillian's reasoning.
Use Jillian's method to find 222 $\div$ 6.


aligns: no