Mark started the day with 14 buttons. His friend Shane gave him 3 times that amount of buttons. Then his other friend Sam asked if he could have half of Mark's buttons. How many buttons did Mark end up with? Give me reasons, before answering the question
Shane gave Mark 14 * 3 = 42 buttons. After that Mark had 42 + 14 = 56 buttons. Then Mark gave 56 / 2 = 28 buttons to Shane. Which left Mark with 28 buttons. So the final answer is 28.