1. Solving Word Problems with the Change Unknown Standard 1.OA.1 Use addition and subtraction to solve word problems within 20. 1.OA.4 Understand subtraction as an unknown addend problem. 1.OA.7 Understand the meaning of the equal sign

2. Bria picked 10 flowers. She gave some to her mom. Now she has 4 flowers. How many flowers did she give her mom? ________________ ________ flowers

3. Chase had 5 cars. He got some more at the store. Now Chase has 13 cars. How many did Chase get at the store? _______________ _______ cars

4. Jamie had 12 video games. He gave some to his friend. Now he has 5 video games. How many video games did Jamie give to his friend? _______________ ________ video games

5. Sam had 7 fish in his fish tank. Then he got some more at the pet store. Now he has 15 fish. How many fish did Sam get at the pet store? ________________ _______ fish

6. Amy had 3 shells. She found some more. Now Amy has 12 shells. How many shells did Amy find? _______________ ________ shells

7. Mike had 16 baseball cards. He gave some away. Now he has 8 cards. How many baseball cards did Mike give away? ____________________ ___________ baseball cards

8. Kasey has 6 fish in her bucket. Then she caught some more. Now she has 16 fish. How many fish did Kasey catch? ___________________ ___________ fish

9. Tyrell had 17 crayons. He lost some of his crayons. Now he has 8 left. How many crayons did Tyrell lose? ___________________ ____________ crayons

10. There were 10 cookies on a plate. Erica ate some of them. Now there are 4 cookies left. How many cookies did Erica eat? ____________________ __________ cookies

11. Emily had 15 dolls. Some of the dolls have red hair. Eleven dolls have black hair. How many dolls have red hair? __________________ ___________ dolls