3. $100 $200 $300 $400 $100 $200 $300 $400 $300 $200 $100 Balance equations Addition / subtraction of 3 digit numbers Guess the number after subtraction Guess the number after addition Subtraction of 3 digit numbers

4. $100 2 + 2 = 6 - __

5. 3 - 2 = 4 - __ $200

6. 6 + 5 = __ - 0 $300

7. 10 + 2 = 16 - __ $400

8. 113 – 103 = $100

9. 236 – 124 = $200

10. 456 – 345 = $300

11. 984 – 763 = $400

12. 123 + 203 = $100

13. 345 – 234 = $200

14. 645 + 333 = $300

15. 734 + 345 = $400

16. $100 A number reduced by 3 is 2. What number is it ?

17. A number reduced by 3 is 4. What number is it ? $200

18. A number reduced by 2 is 6. What number is it ? $300

19. A number reduced by 4 is 6. What number is it ? $400

20. A number increased by 2 is 4. What number is it ? $100 3 1 2

21. A number increased by 3 is 5. What number is it ? $200 3 2 4

22. A number increased by 5 is 9. What number is it ? $300 4 7 3

23. A number increased by 7 is 10. What number is it ? $400 9 7 3