Customary and Metric Measurements Objective: Students identify and convert customary and metric units of measure.

Common Equivalent Customary Units Length Capacity 12 inches (in)= 1 foot (ft) 8 fluid ounces (fl oz) = 1 cup (c) 3 feet = 1 yard (yd) 2 c = 1 pint (pt) 5,280 ft = 1 mile (mi) 2 pt = 1 quart (qt) 1,760 yds= 1 mi 4 qt = 1 gallon (gal) Weight 16 ounces (oz) = 1 pound (lb) 2,000 lbs = 1 ton

19 cups is equal to 152 fluid ounces Try This!!! Convert 19 c to fl oz Method 1: Proportions Write a proportion Method 2: Multiply by 1 Multiply by a ratio equal to 1 and divide out the units 19 cups is equal to 152 fluid ounces

Metric Units base on powers of 10 103=1,000 102=100 101=10 100=1 Thousands Hundreds Tens Ones Kilo- Hecto- Deca- Base Unit Meter/Liter/Gram 1/101=1/10=0.1 1/102=1/100=0.01 1/103=1/1000=0.001 Tenths Hundredths Thousandths Deci- Centi- Milli- To convert metric units, multiply or divide by a power of 10 Multiply to convert to smaller unit Divide to convert to larger unit

Try This!!! Convert each measure. 510 cm to meters 2.3 L to milliliters 100 cm=1m So divide by 100 1 L=100mL So multiply by 1000 Move decimal 2 places left Move decimal 3 places right

G-LaND 1-gallon (gal)= 4-quarts (qt)= 8-pints (pt)= 16-cups (c)= 128 ounces (oz) 8oz=1 cup

Example 1: Convert 5,000 pounds to tons.

Example 2: Convert each measure. 530 cL to liters 1,070 g to milligrams

Example 3: Addison buys one pumpkin that has a mass of 3 kg and another that has a mass of 2,150 g. Which pumpkin has the greater mass? How much greater is its mass?