The Metric System The metric system is a

Changing Metric Units To change from one unit to another in the metric system

Metric Prefixes ■ The metric system has prefix modifiers that are multiples of 10.

Centimeter ■ A fingernail is about 1 centimeter wide ■ A staple is about

TO CHANGE FROM A LARGER UNIT TO A SMALLER UNIT, YOU NEED TO MULTIPLY.

Hectometer ■ A hectometer is about the length of a soccer field. ■ A

Decimeter ■ A crayon is about 1 decimeter long ■ The palm of an

TO CHANGE FROM SMALLER UNITS TO LARGER UNITS YOU DIVIDE BY A POWER OF

Place Values of Metric Prefixes Move the decimal point to the right to multiply.

Decameter ■ A decameter is about the length of the end zone of a

Place Values of Metric Prefixes cm cg c. L Thousandth dm dg d. L

Kilometer ■ A kilometer is about six city ■ A kilometer is a little

Place Values of Metric Prefixes Move the decimal point to the left to divide.

Meters ■ A meter is about the width of a doorway ■ A meter

Place Values of Metric Prefixes km kg k. L hm hg h. L dkm

Millimeter ■ A credit card about 1 millimeter thick ■ A dime is about

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The Metric System ■ The metric system is a measurement system based on our decimal (base 10) number system. ■ Other countries and all scientists and engineers use the metric system for measurement.

Changing Metric Units To change from one unit to another in the metric system you simply multiply or divide by a power of 10.

Metric Prefixes ■ The metric system has prefix modifiers that are multiples of 10. Prefix Kilo. Hecto. Deca. Unit Deci. Centi. Milli- Symbol k h da or dk m, l, or g d c m Factor Number 1000 10 1. 1. 001 Factor Word Thousand Hundred Ten One Tenth Hundredth thousandth

Centimeter ■ A fingernail is about 1 centimeter wide ■ A staple is about 1 centimeter long

TO CHANGE FROM A LARGER UNIT TO A SMALLER UNIT, YOU NEED TO MULTIPLY. 1 km x 1000 = 1000 m 1 m x 100 = 100 cm 1 cm x 10 = 10 mm

Hectometer ■ A hectometer is about the length of a soccer field. ■ A hectometer is about the height of Big Ben, the famous clock tower in London.

Decimeter ■ A crayon is about 1 decimeter long ■ The palm of an adult is about 1 decimeter wide

TO CHANGE FROM SMALLER UNITS TO LARGER UNITS YOU DIVIDE BY A POWER OF TEN. 1000 mm ÷ 10 = 100 cm ÷ 10 = 10 dm ÷ 10 = 1 m

Place Values of Metric Prefixes Move the decimal point to the right to multiply. cm c. L cg Thousandth dm d. L dg Hundredth m L g Tenth dkm dk. L dkg One hm h. L hg Ten Hundred Thousand km k. L kg mm m. L mg

Decameter ■ A decameter is about the length of the end zone of a football field. ■ A decameter is about the length of a school bus.

Place Values of Metric Prefixes cm cg c. L Thousandth dm dg d. L Hundredth m g L Tenth dkm dkg dk. L One hm hg h. L Ten Hundred Thousand km kg k. L mm mg m. L

Kilometer ■ A kilometer is about six city ■ A kilometer is a little over half a mile.

Place Values of Metric Prefixes Move the decimal point to the left to divide. cm c. L cg Thousandth dm d. L dg Hundredth m L g Tenth dkm dk. L dkg One hm h. L hg Ten Hundred Thousand km k. L kg mm m. L mg

Meters ■ A meter is about the width of a doorway ■ A meter is about the length of a guitar.

Place Values of Metric Prefixes km kg k. L hm hg h. L dkm dkg dk. L m g L dm dg d. L cm cg c. L mm mg m. L 3 km 30 hm 300 dkm 30000 dm 300000 cm 3000000 mm 4 L 12 cm

Millimeter ■ A credit card about 1 millimeter thick ■ A dime is about 1 millimeter thick.