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Measuring Length with Decimals

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Measuring Length with Decimals

The aquarium team is preparing new labels and needs accurate measurements. Use the measurements given in each question. Remember: 10 mm = 1 cm, so to change centimetres to millimetres, multiply by 10.

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Freya, Charlotte and Oliver are checking aquarium objects before new display labels are printed. Freya measures a shell as 6.4 cm. Charlotte measures a small model fish as 12.8 cm. Oliver measures a strip of blue tape as 15.2 cm. They record lengths to the nearest tenth of a centimetre.

1.Which measured object is longest: the shell, model fish or strip of tape? Give its length.

2.How much longer is the model fish than the shell?

3.Convert Freya's shell measurement, 6.4 cm, to millimetres.

4.A label strip is 93 mm long. Write its length in centimetres as a decimal.

5.Oliver joins the 15.2 cm strip of tape to another piece that is 8.6 cm long. What is their total length?

6.A tank sign needs a strip that is 30 cm long. The team has 12.7 cm already. How many more centimetres are needed?

7.True or false? 4.7 cm is the same length as 470 mm. Explain by converting 4.7 cm to millimetres.

8.Put these measurements in order from shortest to longest: 8.9 cm, 91 mm, 9.3 cm. Show each as centimetres first.

9.Charlotte estimates that a 12.8 cm model fish is 13 cm long. How far is her estimate from the measured length?

10.A measuring tape starts at 2.0 cm instead of 0. A shell's far end lines up with 10.6 cm. What is the shell's actual length?

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Measuring Length with Decimals

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2 printable pages

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

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