Measuring length and height using cm and mm
I can measure length and height using mm or whole cm and mm.
Measuring length and height using cm and mm
I can measure length and height using mm or whole cm and mm.
Lesson details
Key learning points
- The length or height of objects can be measured in mm or in whole cm and mm.
- It is more efficient to start at zero when measuring.
- If the object is not lined up with zero, then the difference needs to be found.
Common misconception
The length or height of an object is the numerical value at the end of the ruler (if not at zero).
If an object is not measured from zero, its length is the difference between the numerical value at the start and end of the object.
Keywords
Millimetre - A millimetre is a standardised unit of measurement. We can abbreviate millimetre to mm.
Centimetre - A centimetre is a standardised unit of measurement. We can abbreviate centimetre to cm.
Difference - The difference is the result of subtracting one number from another.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
metres
millimetres
centimetres
Exit quiz
6 Questions
m
cm
mm
