1. 3rd – 5th Grade Subtraction
Keeping a Constant Distance

2. Focus on adjusting both numbers by one or two (adding or subtracting)
Category 1

3. 14 – – 9 14 – 7 15 – 6

4. 20 – – –16 14 – 16

5. 30 – – – – 16

6. 42 – – – – 19

7. 50 – – – – 36

8. 35 – – – – 29

9. 61 – – – – 17

10. 90 – – – – 52

11. 100 – – – – 48

12. Focus on adjusting both numbers by one or two (adding or subtracting) with numbers above one hundred
Category 2

13. 101 – – – – 51

14. 139 – – – – 88

15. 135 – – – – 119

16. 150 – – – – 136

17. 153 – – – – 158

18. 261 – – – – 117

19. 342 – – – – 119

20. 199 – – – – 151

21. 498 – – – – 367

22. Use and extend targeted strategy
Category 3

23. 32 – – – – 13

24. 35 – – – – 26

25. 86 – – – – 35

26. 111 – – – – 77

27. 133 – – – – 34

28. 236 – – – – 98

29. 234 – – – – 151

30. 391 – – – – 106

31. 300 – – – – 674