41. there are 100 cents in a dollar
42. there are 100 years in a century
43. there are 1000 years in a millennium
44. there are 100 centimeters in a meter
45 there are 1000 millimeters in a meter
46 there are 1000000 microliters in a liter
47 there are 1000 meters in a kilometer
48 there are 1000000 grams in a megagram
hope that help :)