Lesson 18.1 Reteach Metric

Kilo to hecto

• Divide the value in kilos by 100.

• Add 100 to the value in kilos.

• Subtract 10 from the value in kilos.

• Multiply the value in kilos by 10.

Answer explanation

To convert from kilo to hecto, you need to multiply the value in kilos by 10. Therefore, the correct choice is to multiply the value in kilos by 10.

millimeter to decimeter

• Subtract 100 from the length in millimeters.

• Multiply the length in millimeters by 10.

• Divide the length in millimeters by 100.

• Add 100 to the length in millimeters.

Answer explanation

To convert millimeters to decimeters, divide the length in millimeters by 100 since there are 10 millimeters in a centimeter and 10 centimeters in a decimeter.

kiloogram to gram

• Subtract the number of kilograms from 1000.

• Divide the number of kilograms by 1000.

• Multiply the number of kilograms by 1000.

• Add the number of kilograms to 1000.

Answer explanation

To convert kilograms to grams, you need to multiply the number of kilograms by 1000. This is because there are 1000 grams in 1 kilogram.

centi to meter

• Multiply the length in centimeters by 100.

• Add 100 to the length in centimeters.

• Divide the length in centimeters by 100.

• Subtract the length in centimeters from 100.

Answer explanation

To convert centimeters to meters, divide the length in centimeters by 100. This is because there are 100 centimeters in 1 meter.

meter to kilometer

• Multiply the length in meters by 1000.

• Divide the length in meters by 1000.

• Add 1000 to the length in meters.

• Subtract 1000 from the length in meters.

Answer explanation

To convert meters to kilometers, divide the length in meters by 1000. This is because there are 1000 meters in 1 kilometer.

liter to milliliter

• Divide the volume in liters by 1000.

• Multiply the volume in liters by 100.

• Multiply the volume in liters by 1000.

• Subtract 1000 from the volume in liters.

Answer explanation

To convert liters to milliliters, you need to multiply the volume in liters by 1000 since 1 liter is equal to 1000 milliliters.

hectare to square meter

• Multiply the area in hectares by 100.

• Divide the area in hectares by 100.

• Multiply the area in hectares by 10000.

• Divide the area in hectares by 10000.

Answer explanation

To convert hectares to square meters, multiply the area in hectares by 10000. This is because 1 hectare is equal to 10000 square meters.