Estimate it!
Measure it!
Which unit?
Unit conversions
100

About how many centimeters wide is your thumbnail?

1 cm or 10 cm

1 cm

100
How many inches is your book box?
_____ in.
100
With which unit would you measure a crayon? a. centimeters b. meters
a. centimeters
100
How many inches are in one foot?
12 inches
200

Estimate how tall the door is.

3 meters or 30 meters

3 meters

200
How many centimeters long is a paperclip?
____ cm
200
With which unit would you measure a soccer field? a. inches or centimeters b. feet c. yards or meters
c. yards or meters
200
How many feet are in one yard?
3 feet.
300

Which is the best estimate for height of a desk?

2 feet or 10 feet

2 feet

300
Tricky!! If an eyebrow is about 3 cm long, about how many inches long is the eyebrow?
1 inch (1 inch = a little less than 3 cm)
300
With which unit would you measure the height of a person?
feet
300
How many centimeters are in one meter?
100 centimeters.
400
Which is the best estimate for height of Mrs. Estopinal? a. 6 feet b. 6 meters c. 6 centimeters
a. 6 feet
400
Would you use a yardstick or a ruler to measure the distance from your desk to the bathroom?
yardstick
400
With which unit would you measure the length of our library? a. feet b. centimeters c. yards or meters
c. yards or meters.
400
If 12 inches are in 1 foot, how many inches are in 2 feet?
24 inches
500
Which is the best estimate for the height of a stopsign? a. 10 feet b. 10 inches c. 10 meters
a. 10 feet
500
How many inches long is your desk?
______ in.
500
With which unit would you measure the length of a person's ear? a. centimeters b. feet c. yards Estimate the length of a person's ear.
centimeters. Estimation between 4 and 9 centimeters.
500
If 3 feet are in 1 yard, how many feet are in 3 yards?
9 feet.
M
e
n
u