1. Which units would you use to measure the following lengths?
a. The width of a netball court b. The distance between two islands c. The length of a car d. The width of a light bulb 
2. a. Draw a square with sides of 4 cm and measure, to the nearest millimetre, with a ruler, the length of the diagonal.
b. Draw a rightangled triangle with the two sides making the right angle being 3 cm and 4 cm and measure the length of the other side. Give the answer in cm, to one decimal place.
c. Draw a rectangle with one side 5 cm and one side 6 cm and measure the length of the diagonal to the nearest millimetre.
3. Match up the following objects with the list of likely lengths:
(i) The width of a laptop computer 
a. 195 cm


(ii) The height of a tennis player 
b. 2.1 m


(iii) The length of a snowboard 
c. 120 mm


(iv) The length of a calculator 
d. 30 cm


(v) The thickness of a paperback book 
e. 30 m


(vi) The length of a space rocket 
f. 12 mm

4. Complete this table:
mm

cm

m

km

590


1.4


2.3

5. Calculate and leave the answers in metres:
a. 3 km + 4 km
b. 6 km + 349 m
c. 3 m + 932 cm
d. 639 cm + 493 cm + 92 cm
e. 2 km − 550 m
f. 45 cm + 0.5 m − 95 mm
6. Convert each of the following measurements to the units given in brackets
a. 5 mm 
(cm)

b. 4 km 
(m)

c. 1200 mm 
(m)

d. 2.3 cm 
(mm)

e. 234 mm 
(m)

f. 1.4 km 
(cm)

g. 440 m 
(km)

h. 120 m 
(cm)

i. 324 mm 
(cm)

j. 3.9 km 
(mm)
