请用act up ,act like .add up各造三个句子,

1.act up 胡闹,出毛病
The children started to act up as soon as the teacher left the room.
老师一离开教室,孩子们就闹起来了.
2.act like
A man may talk like a wise man and yet act like a fool.一个人可能说话像个聪明人,而行为像个大笨蛋.
3add up加起来
The facts just don’t add up.这些事情合计起来不对头.