Find the start in a story

What did they have at the start? Work backward.

1. Lia has some cards. Lia gets 7 more. Now Lia has 10. How many did Lia have at first?
2. Omar has some books. Omar gets 4 more. Now Omar has 8. How many did Omar have at first?
3. Gus has some marbles. Gus gets 9 more. Now Gus has 10. How many did Gus have at first?
4. Lia has some crayons. Lia gets 6 more. Now Lia has 9. How many did Lia have at first?
5. Ben has some pencils. Ben gets 3 more. Now Ben has 17. How many did Ben have at first?
6. Lia has some marbles. Lia gets 12 more. Now Lia has 15. How many did Lia have at first?
7. Kai has some pencils. Kai gets 2 more. Now Kai has 17. How many did Kai have at first?
8. Ben has some pencils. Ben gets 12 more. Now Ben has 18. How many did Ben have at first?
9. Eli has some blocks. Eli gives away 2. Now Eli has 3 left. How many did Eli have at first?
10. Dara has some books. Dara gives away 2. Now Dara has 3 left. How many did Dara have at first?
11. Jon has some crayons. Jon gives away 4. Now Jon has 1 left. How many did Jon have at first?
12. Gus has some stamps. Gus gives away 5. Now Gus has 2 left. How many did Gus have at first?
13. Jon has some stickers. Jon gives away 5. Now Jon has 9 left. How many did Jon have at first?
14. Mo has some cards. Mo gives away 3. Now Mo has 15 left. How many did Mo have at first?
15. Mo has some stickers. Mo gives away 9. Now Mo has 10 left. How many did Mo have at first?
16. Eli has some blocks. Eli gives away 7. Now Eli has 6 left. How many did Eli have at first?
17. Omar has some marbles. Omar gets 9 more. Now Omar has 19. How many did Omar have at first?
18. Lia has some marbles. Lia gets 7 more. Now Lia has 15. How many did Lia have at first?
19. Ana has some blocks. Ana gets 8 more. Now Ana has 19. How many did Ana have at first?
20. Ivy has some pencils. Ivy gets 5 more. Now Ivy has 9. How many did Ivy have at first?