Check Out These 50 Fifth Grade Math Word Problems of the Day 50 Fifth Grade Math Word Problems 1. Three trains pulled into the station at 3 p.m. The Menton train had 2,589 passengers. The Reston train had 671 passengers. The Pearson City train had 1,024 passengers. How many passengers were there all together? 2. Grow Up Farmer's Market had 4 crates of lemons delivered. One crate had 2,100 lemons.