Rosa has a checking account. On Monday she writes a $150 check for groceries. Then she deposits $225. Finally, she writes another check for $40 to buy new headphones. What is the total change in the amount in Jazella's checking account?
When she wrote the grocery check, she got -150, then she deposite 225, so then -150 + 225 = 75. She wrote another check for new headphones, which were $40, so 75 - 40 = 35.