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Grade 5 Study Guide 2/2 Mathematics

Page 12

Unit

3

Study Guide 2/2 G05 ~ Mathematics

Balancing scale

We measure mass in kilogram and gram.

Kilogram (kg) Gram (g) You use kilogram when measuring objects heavier than 1 000 g. Smaller objects with a mass of less than 1 kg are measured in grams. When you convert between gram and kilogram, remember that there are 1 000 g in every 1 kg. Use the diagram below to help with the conversion between gram and kilogram.

kilogram (kg)

× 1 000 ÷ 1 000

gram (g)

Example Convert 8 153 g from gram (g) to kilogram (kg). = 8 153 g ÷ 1 000 = 8,153 kg (Remember: 8,153 kg is 8 kg 153 g – that is 8 full kilograms and 153 grams that are not enough to make up a full kilogram, therefore, the 153 comes after the comma.) Revise the conversion of volume in lesson 9. To simplify the calculations, you can picture a comma at the end of the number. When you divide by 1 000, move the imaginary comma three place values to the left (because there are three zeros in 1 000). © Impaq

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Grade 5 Study Guide 2/2 Mathematics by Impaq - Issuu