Books like The Homework Machine
Dan Gutman
The Homework Machine is 146 pages, about 2 hours 41 minutes at 250 words a minute.
12 books to read next
How long each takes
Matilda 4.4 h 
Cheat Sheet 1.9 h 
The Bully 3.5 h 
Muggie Maggie 1.3 h 
Theodore Boone - The Scandal 4.2 h 
The New Teacher 1.8 h 
Camilla Chameleon 35 min 
First-grade Bunny 35 min 
The Perfect Score 6.8 h 
Switched 3.8 h 
Something Fishy at Macdonald Hall 3.6 h 
Don't Care High 4.6 h Bar height shows length. Estimated at 250 words a minute.