Mcgregor and Floyd were assigned 89 books to read for the week. If Mcgregor was able to finish 34 while Floyd was able to finish 32, how many books do they still have to read?
They both finished reading a total of 34 + 32 = <<34+32=66>>66 books.
Therefore, they still have to read a total of 89 – 66 = <<89-66=23>>23 books.
#### 23