2 METRIC TERM – ABBREVIATION – STANDARD SYSTEM COMPARISON Meter m Length Inch, foot, yard, mileGram g Weight Ounce, poundLiter L* Volume Fluid ounce, cup, pint, quart, gallon*Capital L is commonly used to prevent confusion of lowercase I and the number 1.
3 TERM ABBREVIATION MEANING Kilo k unitsHecto h unitsDeci d 1/10 or unitCenti c /100 or unitMilli m / or unit
5 “Less Than 1” Unit of Measure Length:• 1 decimeter (dm) = 1/10 or 0.1 of a meter• 1 centimeter (cm) = 1/100 or 0.01 of a meter• 1 millimeter (mm) = 1/1000 or of a meter
6 Volume: • 1 deciliter (dL) = 1/10 or 0.1 of a liter • 1 milliliter (mL) = 1/1000 or of a liter
7 Basic Rules for the Metric System 1. Numbers less than one unit are written in decimals. Examples:2. If there is no number before the decimal point, always add a zero. Examples: .1 is is is 0.753. Abbreviations are always singular, never plural. Examples: Grams is abbreviated g, not gs. Liters is abbreviated L, not Ls. Liter is always shortened to capital L, not lowercase I.4. Leave a space between the number and the abbreviation. Examples: 10 g not l0g mL not l000mL.
8 The Metric Number Line: Another way to help you navigate inside The Metric Number Line: Another way to help you navigate inside the metric system.Kilo Hecto Deka * Deci Centi Milli
9 To use the Metric Line: You will decide what unit you are changing FROM and what unit you are changing TO.Starting at the FROM unit, count over (keeping in mind- "left" or "right") to the TO unit.
10 EXAMPLE: 32 kilograms = ___________ grams **This will be the number of places you will move the decimal in your answer.EXAMPLE: 32 kilograms = ___________ grams(This means you want to change FROM kilograms TO grams.)Use the number line and count over, starting atKilograms….move to grams.K H D (grams) D C M* -> 1 place- ->2 places- -> 3 places
11 Move the decimal 3 places to the "right“ Now we use the number of places you moved (3 places to the "right") to find the answer.Move the decimal 3 places to the "right“using a zero to hold each of the places32 kilograms = gramsDon’t forget that every whole number has adecimal to it’s right, so in our example32kg is the same as saying 32.0 kg(We don’t always write the decimal to the right of a numberbut it is understood that it is there.)
13 Measuring Devices: Fluid Ounces and Cubic Centimeters Baby’s bottleGraduateMeasuring cup
14 Converting Pounds and Kilograms Converting pounds to kilograms: Multiply weight in pounds by Examples: 110 lb changed to kilograms: 110 x 0.45 = 49.5 kg 200 lb changed to kilograms: 200 x 0.45 =90 kgConverting kilograms to pounds: Multiply weight in kilograms by 2.2 Examples: 50 kg changed to pounds: 50 x 2.2 = 110 lb 90 kg changed to pounds: 90 x 2.2 = 198 lb
15 Converting Ounces to Metric Measurements •Converting ounces to cc/mlMultiply volume in ounces by 30Examples:1 oz medicine 1 × 30 = 30 ml = 30 cc8 oz water 8 × 30 = 240 ml = 240 cc6 oz soup 6 × 30 = 180 ml = 180 cc4 oz juice 4 × 30 = 120 ml = 120 cc12 oz soda pop 12 × 30 = 360 ml = 360 cc• Converting ounces to gramsMultiply weight in ounces by 30Examples:1 oz changed to grams: 1 × 30 = 30 g8 oz changed to grams: 8 × 30 = 240 g