2.  Complete the following equalities:  1 year = ____ months  1 tricycle = ____wheels  1 alphabet= ____ letters  1 dollar= ____ pennies  Now complete these equalities:  4 years = _____ months  ____ tricycles = 27 wheels  2 alphabets = ____ letters  ____ dollars = 550 pennies

3. PrefixAbbreviationMeaningNotation Giga-Gbillion1,000,000,000 or 10 9 Mega-Mmillion1,000,000 or 10 6 Kilo-kthousand1,000 or 10 3 Hecto-hhundred100 or 10 2 Deca-daten10 or 10 1 BASE UNITS grams (g), meter (m), liter (L) deci-dtenth1/10 or 0.1 or 10 -1 centi-chundredth1/100 or 0.01 or 10 -2 milli-mthousandth1/1,000 or 0.001 or 10 -3 micro-µmillionth1/1,000,000 or 0.000001 or 10 -6 nano-nbillionth 1/1,000,000,000 or 0.000000001 or 10 - 9

4.  1 kg = ____ g  1 mL = ____ cm 3  1 m = ____ cm  1 L = ____ mL  1 g = ____ mg  1 m = ____ mm  1 cm = ____ mm *Multiplying gives bigger number but smaller unit *Dividing gives smaller number, but bigger unit

5. 1.85 m  cm 1.85 m x 100 cm = 1 1 m 185 cm Conversion Factor

6. 1.85 m  cm 1.85 m 100 cm = 1 m x 185 cm Conversion Factor

7.  The height of a building is 553m tall. How many kilometers is that? 553 m m km 1 1000 = 0.553 km

8.  The mass of an object is 35 kg. What is the objects mass in grams? Answer: 35,000 grams

9.  Your next class is 0.0748 kilometers away. How many meters will you need to walk to get there? Answer: 74.8 meters

10. 1.85 km  cm = 185,000 cm Conversion Factor 1.85 km 1 1000 1 100 km m m cm Conversion Factor

11.  Convert 51.3 kg to milligrams. Answer: 51,300,000 milligrams

12.  Convert 97 kilometers into centimeters. Answer: 9,700,000 centimeters

13.  Convert 186 days into seconds 186 days 1 days 24 hrs. 1 hr. 60 min. 1 min. 60 s = 16,070,400 seconds