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Measuring Lengths - Cycle 2
| Mathematics
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How do I read a measurement in millimetres on a ruler?
On a ruler, the shortest marks (lines) and the medium-sized marks indicate millimetres (mm).
The distance between each of the short marks is 1 mm.
On a ruler, 1 mm looks like the following.
The 5 mm mark is a bit longer so that it can be found more easily.
- I place the ruler along the length being measured. I make sure that the 0 mark is at the beginning of the length.
- To find the total measurement, I look at the line on the ruler where the measurement ends.
What is the length of the following line in mm?
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The line measures 4 mm.