... up + calculate a sum I added up the receipts and it totaled $ 13 5 .46.add up to + equal an amount The total expenses added up to $32 5.00. add up make sense Her story doesn't add up. I think ... check in before noon.check into + enter a hospital, hotel etc. They checked into the hotel at 11 :00 AM.check into + investigate, look for (often through a service) We are checking into discount ... up.set up + arrange (an appointment, a meeting,etc.)I set up an appointment with my doctor at 3: 30 this afternoon.settle on + make a decision after a period of time I settled on the job at...