Solve unknown-factor stories
~10 min
Use a multiplication or division equation with a missing number.
Finding a Missing Factor
4 items
4 items
4 items
3 x 4
When you have a multiplication equation with a missing number, you can think of it as finding how many groups or how many are in each group to reach the total.
💡 Think of the equation as a group size problem: (Number of Groups) × (Items per Group) = Total.

