Map Scales and Ratios

1 m = __________ cm

• 10

• 100

• 1000

• 100 000

1km = ___________ m

• 10

• 100

• 1000

• 100 000

1km = _______________ cm

• 10

• 100

• 1000

• 100 000

I draw up a plan for a new kitchen. On the plan, 10cm represents 5m in the kitchen.

Write the scale in the form 1 : n

• 10 : 5

• 1 : 0.5

• 1 : 50

• 1 : 500

A map of scale 1 : 10 000 means that 1 cm on the map represents the actual distance of 10 000 cm on the ground.

What does 4 cm on the map represent?

• 4 cm

• 400 cm

• 40 000 cm

• 40 000 m

Express 1 cm : 8 m in the form of 1 : n.

• 1 : 80

• 1 : 800

• 1 : 8000

• 1: 800 000

Express 3 cm : 900 m in the form of 1 : n.

• 1 : 300

• 1 : 3000

• 1 : 30 000

• 1 : 300 000

A map has a scale 1: 50,000.

Select all of the ratios that are equivalent to this scale:

• 1cm : 500m

• 1m : 50 km

• 2mm : 100m

• 2cm : 1km

Express 50 cm : 2.5 km in the simplest form.

• 1 : 0.05

• 1 : 5

• 1 : 50

• 1 : 5 000

The scale of a street map is 1 : 5000.

Find the actual distance, in metres,

for 4 cm on the map.

• 0.2

• 2

• 20

• 200