🧠 Grade 4 Math Quiz · Measurement
Centimetres Practice Questions
70 Grade 4 questions on Centimetres. Choose an answer to get instant feedback and a short explanation — the first 10 are free.
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Practice Questions
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How many millimetres are in 1 centimetre?
Explanation:
1 cm = 10 mm.
A pencil is 18 cm long. How do we write this length?
Explanation:
The length is 18 centimetres.
Which is longer: 45 cm or 450 mm?
Explanation:
450 mm = 45 cm, they are equal.
Your book is 25 cm wide. How many millimetres is that?
Explanation:
25 cm × 10 = 250 mm.
Convert 90 cm to millimetres.
Explanation:
90 cm × 10 = 900 mm.
A desk is 120 cm long. How many metres is that?
Explanation:
120 cm = 1.2 m (divide by 100).
Which is shorter: 35 cm or 400 mm?
Explanation:
400 mm = 40 cm, so 35 cm is shorter.
You grew 8 cm in one year. How many millimetres did you grow?
Explanation:
8 cm × 10 = 80 mm.
A ribbon is 65 cm long. How do we write this in centimetres?
Explanation:
It is already 65 centimetres.
Which object is about 30 cm long?
Explanation:
A standard ruler is 30 cm long.
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