Unit conversions within and across the imperial and metric systems. Introduction to area.

1. Converting
Measurements
tape measures by flickr
user jek in the box

2. Which units of measurement would you use to measure the
length or height of each item?
IMPERIAL
METRIC
cm m inches feet yards miles
km
km miles
cm inches diameter
length
height
m yards
thickness
inches mm
miles

3. Which units of measurement would you use to measure:
IMPERIAL
METRIC
inches feet yards miles
cm m
mm km
m miles
km yards
height
length
m yards
feet
height
yards
m feet
cm inches
width

4. A plank measures 6 feet. How many inches does it measure?
WATCH YOUR
UNITS

5. Imperial Measurements and Conversions
IMPERIAL IMPERIAL to METRIC
1 foot = 12 inches 1 inch = 2.54 centimeters
1 mile = 1.6 kilometers
1 yard = 3 feet
Indicate the measurements
1 mile = 1760 yards
using an arrow
2 3/32 inches
5/16 inch 3 7/8 inches
2 5/8 inch
1 1/4 inches 4 1/16 inches
4 3/16 inches

6. Perform the indicated operations:
(a) 76 mm + 12 cm (b) (5 yds 1 ft) x (2 yds 2 ft)
(d) 2.5 feet to the nearest inch
(c) 24m - 870 cm - 4350 mm

7. (b) (5 yds 1 ft) x (2 yds 2 ft)

8. Before performing calculations that involve two different length units,
convert either one of the units or both so that the units are the same.
(Most often use the smaller units.) IMPERIAL
1 foot = 12 inches
Perform the following calculations:
1 yard = 3 feet
3 mi - 250 ft = ___________________ 1 mile = 1760 yards
12 mm x 4.3 cm = ___________________

9. Before performing calculations that involve two different length units,
convert either one of the units or both so that the units are the same.
(Most often use the smaller units.)
A roll of fencing is 90 m long and someone buys 536 cm. How
much is left on the roll?

10. Before performing calculations that involve two different length units,
convert either one of the units or both so that the units are the same.
(Most often use the smaller units.)
Perform the following calculations:
2 m + 75 cm = ___________________
3 ft 2 in + 7 ft 11 in = ___________________

11. Conversion Tables
Similar comparisons can be made. The following conversion table
includes those conversions that are the most widely used.
1 inch = 2.54 cm 1 mm= 0.04quot;
1 foot = 30.48 cm 1 cm = 0.39quot;
1 yard = 0.914 m 1 m = 39.37quot; = 3.28'
1 mile = 1.61 km 1 m = 1.09 yd
1 km = 0.621 mi