1. Mental Math – Powers of 10 To schwoop or not to schwoop, that is the question….

2. Rules: With your group, Read the problem Decide if you can solve it mentally If you can, write down the answer If it is not a mental math problem, write, “No Schwooping!” If you have the answer correct, your team gets one point If you correctly pick out a problem you cannot do mentally, you get 5 points

3. 3.5 x 10 4 =

4. 6.04 x 10 -3 =

5. 56 ÷ 1000 =

6. 5.7 x 110 =

7. 4346 x 10 -2 =

8. 987.5 x 10 3 =

9. 80.5 x 10 2 =

10. 0.0045 x 10 5 =

11. 0.123 x 10 -5 =

12. 4 ÷ 100 =

13. 23.6 x 10 =

14. 23.01 x 101 =

15. 3342 x 10 4 =

16. 3.45 x 10 -3 =

17. 5,672 x 10 -2 =

18. 345 x 10,000 =

19. 0.003 x 10 -1 =

20. 9 x 11 4 =

21. 913,981 x 10 3 =