Transcript 1 - dinardo
basic
3 12 × 24 15 PO D 2 1 8
advance d
÷ 4 1 2
Convert Between Measurement Systems
You can multiply by fractions to convert between customary and metric units. The table below lists common customary and metric relationships.
Type of Measure Customary
Metric
Length Weight/Mass Capacity 1 inch (in.) ≈ 2.54 centimeters (cm) 1 foot (ft.) ≈ 0.30 meter (m) 1 yard (yd) ≈ 0.91 meter (m) 1 mile ≈ 1.61 kilometers (km) 1 pound (lb.) ≈ 453.6 grams (g) 1 pound (lb.) ≈ 0.4536 kilograms (kg) 1 ton (T) ≈ 907.2 kilograms (kg) 1 cup (c) ≈ 236.59 milliliters (mL) 1 pint (pt) ≈ 473.18 milliliters (mL) 1 quart (qt) ≈ 946.35 milliliters (mL) 1 gallon (gal) ≈ 3.79 liters (L)
Ex. Convert 17.22 inches to centimeters. Round to the nearest hundredth if necessary.
Since 2.54 centimeters ≈ 1 inch, multiply by 2.54 cm 1 in 17.22
1 in × 2.54 cm 1 in cross cancel common units = 43.7388 cm 1 = 43.74 cm
Ex. Convert 5 kilometers to miles. Round to the nearest hundredth if necessary.
Since 1 mile ≈ 1.61 kilometers, multiply by 1 mi. 1.61 km 5 km 1 × 1 mi.
1.61
km cross cancel common units = 5 mi.
1.61
= 3.11 mi.
Whiteboard time What is the relationship between feet and meters? Write as a ratio.
1 ft .30m
Whiteboard time What is the relationship between cups and milliliters? Write as a ratio.
1 c 236.59mL
Whiteboard time 6 yd ≈ _____ m
5.46 m
Whiteboard time 1.6 cm ≈ _____ in
0.63 in
Whiteboard time 17 m ≈ _____ yd