Kate saved $27 in March. She saved $13 in April and $28 in May. Then Kate spent $49 on a keyboard and $5 on a mouse. How much money does Kate have left? Give me reasons, before answering the question
The total amount of money saved is $27 + $13 + $28 = $68. The total cost of the two products is $49 + $5 = $54. Kate has $68 − $54 = $14 left. So the final answer is 14.