Erica knits 68 squares on Monday. She knits 4 each day from Tuesday through Friday. How many squares did Erica knit in all by the end of the day on Friday?
Erica knits 68 squares on Monday. From Tuesday through Friday is 4 days and each day she knitted 2 squares. This is 8 in total. For the week she knitted 68 + 8 = 76