1. Multiplication and Division by Powers of Ten

2. Multiplication

3. 42 x 10
= 420

4. 38 x 100
= 3800

5. 6.1 x 10
= 61

6. 27 x 1000
= 27000

7. 64.2 x 10
= 642

8. 0.3 x 100
= 30

9. 95.7 x 100
= 9570

10. 0.04 x 100
= 4

11. 0.062 x 10
= 0.62

12. 7.83 x 1000
= 7830

13. 0.408 x 10
= 4.08

14. 32.9 x 100
= 3290

15. 56.4 x 10
= 564

16. 3 x 4 x 10
= 120

17. 5 x 7 x 100
= 3500

18. Division

19. 345 ÷ 100
= 3.45

20. 1 ÷ 100
= 0.01

21. 14 ÷ 10
= 1.4

22. 95 ÷ 10
= 9.5

23. 342 ÷ 1000
= 0.342

24. 64 ÷ 100
= 0.64

25. 223 ÷ 1000
= 0.223

26. 4500 ÷ 10
= 450

27. 2800 ÷ 100
= 28

28. 160 ÷ 100
= 1.6

29. 12000 ÷ 100
= 120

30. 11000 ÷ 1000
= 11

31. 6 x 2 ÷ 10
= 1.2

32. 20 ÷ 5 ÷ 100
= 0.04

33. 2 x 8 ÷ 100
= 0.16