Subtraction with Decimals
This lesson covers subtraction with decimals (particularly when the problem is set up horizontally). Below you will find a video lesson explaning tricks I use to teach the students how to insert their decimals and line them up. You will also find practice problems, word problems, and an answer key for those practice problems as you scroll down.
Practice Problems

subtractionwithdecimals.doc |
Sample Word Problems:
1. Ken had $20. He spent $4.02 on a new shirt. How much money does he have now?
2. Melissa spent $7.12 at the carnival. She went with a 10 dollar bill. How much does she leave the carnival with?
3. Will and Mark put their money together. Will had $10. Bill had $3. They bought a pizza for $8.05. How much money do the boys have now?
4. It took James 3.5 hours to get to his mother's house. It took him 2.15 hours to get to his father's house. How much longer does it take for James to get to his mother's house than his father's house?
5. Janet ran the hundred meter dash in 33 seconds. Hunter ran it in 24.35 seconds. How much time did Hunter beat Janet by in the hundred meter dash?
1. Ken had $20. He spent $4.02 on a new shirt. How much money does he have now?
2. Melissa spent $7.12 at the carnival. She went with a 10 dollar bill. How much does she leave the carnival with?
3. Will and Mark put their money together. Will had $10. Bill had $3. They bought a pizza for $8.05. How much money do the boys have now?
4. It took James 3.5 hours to get to his mother's house. It took him 2.15 hours to get to his father's house. How much longer does it take for James to get to his mother's house than his father's house?
5. Janet ran the hundred meter dash in 33 seconds. Hunter ran it in 24.35 seconds. How much time did Hunter beat Janet by in the hundred meter dash?
Check Your Work!

answerkeysubtractionwithdecimals.doc |