IMO Practice Test — Measurement: Length
6 Questions • 12 min • Olympiad level
12:00
Question 1 of 6
hard
How many cm in 2 m 5 cm?
25
205
250
255
Explanation: 2 m = 200 cm, + 5 = 205 cm.
Question 2 of 6
hard
Which is the LONGEST?
1 km
900 m
1500 m
500 m
Explanation: 1500 m > 1 km (1000 m) > 900 m > 500 m.
Question 3 of 6
medium
A pencil is 12 cm. How many mm is that?
1.2
120
1200
12
Explanation: 12 × 10 = 120 mm.
Question 4 of 6
medium
Half of 1 metre is…
5 cm
50 cm
500 cm
10 cm
Explanation: Half of 100 cm = 50 cm.
Question 5 of 6
hard
Three ribbons of 25 cm each, joined, make…
50 cm
75 cm
1 m
70 cm
Explanation: 25 × 3 = 75 cm.
Question 6 of 6
hard
A road is 2 km. A car has driven 1500 m. How much is left?
500 m
1500 m
300 m
1000 m
Explanation: 2 km = 2000 m; 2000 − 1500 = 500 m.