Answer: 7
Step-by-step explanation:
We would use the multiplication array strategy to solve the problem. This basically means that if you multiply the number of items in rows by the number of items in columns, you should get the same result as if you multiplied manually.
So, in this case, we know that 42 pieces of cake were sliced and that 6 rows remained when she finished dividing the cake. The result of dividing 42 by 6 is 7.
6 rows × 7 columns = 42 cake slices
