1. The Metric System “I’m ten times better than the Standard system of measurement!”

2. Let’s do some review work before we begin.

3. Multiply each of the following numbers by 10 15 x 10 = 235 x 10 = 12.4 x 10 = 43.2 x 10 = 853.56 x 10 =

4. Multiply each of the following numbers by 10 15 x 10 = 150 235 x 10 = 12.4 x 10 = 43.2 x 10 = 853.56 x 10 =

5. Multiply each of the following numbers by 10 15 x 10 = 150 235 x 10 = 2350 12.4 x 10 = 43.2 x 10 = 853.56 x 10 =

6. Multiply each of the following numbers by 10 15 x 10 = 150 235 x 10 = 2350 12.4 x 10 = 124 43.2 x 10 = 853.56 x 10 =

7. Multiply each of the following numbers by 10 15 x 10 = 150 235 x 10 = 2350 12.4 x 10 = 124 43.2 x 10 = 432 853.56 x 10 =

8. Multiply each of the following numbers by 10 15 x 10 = 150 235 x 10 = 2350 12.4 x 10 = 124 43.2 x 10 = 432 853.56 x 10 = 8535.6

9. Multiply each of the following numbers by 100 15 x 100 = 235 x 100 = 12.4 x 100 = 43.2 x 100 = 853.56 x 100 =

10. Multiply each of the following numbers by 100 15 x 100 = 1500 235 x 100 = 12.4 x 100 = 43.2 x 100 = 853.56 x 100 =

11. Multiply each of the following numbers by 100 15 x 100 = 1500 235 x 100 = 23500 12.4 x 100 = 43.2 x 100 = 853.56 x 100 =

12. Multiply each of the following numbers by 100 15 x 100 = 1500 235 x 100 = 23500 12.4 x 100 = 1240 43.2 x 100 = 853.56 x 100 =

13. Multiply each of the following numbers by 100 15 x 100 = 1500 235 x 100 = 23500 12.4 x 100 = 1240 43.2 x 100 = 4320 853.56 x 100 =

14. Multiply each of the following numbers by 100 15 x 100 = 1500 235 x 100 = 23500 12.4 x 100 = 1240 43.2 x 100 = 4320 853.56 x 100 = 85356

15. Divide each of the following numbers by 10 230  10 = 4500  10 = 123.5  10 = 21.6  10 = 8.465  10 =

16. Divide each of the following numbers by 10 230  10 = 23 4500  10 = 123.5  10 = 21.6  10 = 8.465  10 =

17. Divide each of the following numbers by 10 230  10 = 23 4500  10 = 450 123.5  10 = 21.6  10 = 8.465  10 =

18. Divide each of the following numbers by 10 230  10 = 23 4500  10 = 450 123.5  10 = 12.35 21.6  10 = 8.465  10 =

19. Divide each of the following numbers by 10 230  10 = 23 4500  10 = 450 123.5  10 = 12.35 21.6  10 = 2.16 8.465  10 =

20. Divide each of the following numbers by 10 230  10 = 23 4500  10 = 450 123.5  10 = 12.35 21.6  10 = 2.16 8.465  10 =.8465

21. Divide each of the following numbers by 100 230  100 = 4500  100 = 123.5  100 = 21.6  100 = 8.465  100 =

22. Divide each of the following numbers by 100 230  100 = 2.30 4500  100 = 123.5  100 = 21.6  100 = 8.465  100 =

23. Divide each of the following numbers by 100 230  100 = 2.30 4500  100 = 45.00 123.5  100 = 21.6  100 = 8.465  100 =

24. Divide each of the following numbers by 100 230  100 = 2.30 4500  100 = 45.00 123.5  100 = 1.235 21.6  100 = 8.465  100 =

25. Divide each of the following numbers by 100 230  100 = 2.30 4500  100 = 45.00 123.5  100 = 1.235 21.6  100 =.216 8.465  100 =

26. Divide each of the following numbers by 100 230  100 = 2.30 4500  100 = 45.00 123.5  100 = 1.235 21.6  100 =.216 8.465  100 =.08465

27. Nice Job! If you can multiply & divide by 10 (or any power of 10), then the metric system will be easy for you.

28. THE METER The meter is the starting point for the metric system. START

29. Here’s a meter stick!

30. It takes 10 decimeters to make up 1 meter.

31. It takes 10 centimeters to make up 1 decimeter.

32. If 1 meter = 10 decimeters and 1 decimeter = 10 centimeters then how many centimeters make up 1 meter?

33. That’s right! 1 meter = 100 centimeters

34. 100centimeters = 1 meter

35. It takes 10 millimeters to make up 1 centimeter. Boy, that’s small!

36. If 1 meter = 10 decimeters and 1 decimeter = 10 centimeters and 1centimeter = 10 millimeters then how many millimeters make up 1 meter?

37. That’s right! 1000 millimeters = 1 meter

38. It takes 10 millimeters to make up 1 centimeter. Millimeters are so small that they almost run together.

39. Now let’s take a closer look at some measuring devices.

40. This is a magnified image of a ruler/meter stick. 1 This is one centimeter. 234

41. This is a magnified image of a ruler/meter stick. 1 This is half of a centimeter. 234

42. This is a magnified image of a ruler/meter stick. 1 This is one millimeter. 234

43. 1234 This key measures 3 cm.

44. 1234 Or you could say that it measures 30 mm.

45. 1234 This key measures 2.5 cm.

46. 1234 Or, you could say that it measures 25 mm.

47. 1234 This toy car measures 4.2 cm.

48. 1234 Or, you could say it measures 42 mm.

49. The metric system deals with powers of 10 1 meter = 10 decimeters = 100 centimeters = 1000 millimeters

50. How many centimeters make up 2 meters?

51. That’s right! There are 200 centimeters in 2 meters.

52. How many millimeters make up 2 meters?

53. That’s right! There are 2000 millimeters in 2 meters.

54. How many decimeters make up 2 meters?

55. That’s right! There are 20 decimeters in 2 meters.

56. The metric system really is 10 times better than our standard system of measurement. It is very easy to convert from one unit to another.

57. You must simply multiply by 10, 100, or 1000. OR You must simply divide by 10, 100, or 1000.

58. Here are the units you need to know… kilohectodeca Base Units meter gram liter decicentimilli King Henry Died By Drinking Chocolate Milk Ex: 324 ml = __________dal 5 kg = __________mg 1010 cm = __________hm Which unit would you use for: Liquids Length/distance Weight/mass

59. Summary The Metric System is based on multiples of 10 To convert from a larger to smaller metric unit you always multiply (move decimal to right) To convert from a smaller to larger unit you always divide (move decimal to left) Unless otherwise specified, measure by the following: If you are measuring length use meter. If you are measuring dry weight use grams. If you are measuring liquid capacity use liter

60. The end.