Converting Lengths - Centimetres and Millimetres WORKSHEET
Converting Lengths - Centimetres and Millimetres WORKSHEET DESCRIPTION
Prepare your students to measure, compare, add and subtract lengths fluently in centimetres and millimetres by first looking at some equivalent measurements. Learners will use a ruler throughout the worksheet to find equivalence of cm and mm including fractional lengths such as 6 ½ cm.
Lengths are also partitioned from mm into cm and mm for example 34 mm is 3 cm and 4 mm and vice versa.
For more equivalence of metric lengths see our worksheet Converting Lengths - Metres and Centimetres.
All worksheets are created by the team of experienced teachers at Cazoom Maths.
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Frequently Asked Questions
Converting between cm and mm builds essential foundational skills that Year 3 students need to measure, compare, add and subtract lengths confidently. Understanding these equivalences helps children work flexibly with metric measures and prepares them for more complex measurement tasks. It's particularly important when using rulers, as children need to read both the centimetre and millimetre markings accurately.