Unit 7 Contents

Use base-ten pieces to solve the following problems. Record your answers using base-ten shorthand.

4. Emily collects baseball cards. She has 413 cards. If she puts 220 into a box, how many cards are left to be stored?
5. Sam had 124 small cars in his collection. He sold 36 cars to Josh. How many cars does Sam have left?

Check-In: Questions 6–10

6. Solve 326 − 175. Darius says that when he solved the problem, he had to trade 1 flat for 10 skinnies. Do you agree or disagree? Explain why.

10. In Question 9, did you trade any skinnies for bits? If yes, show or tell what you did and why.