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BIRKDALE HIGH SCHOOL Converting between Metric unitsPowerPoint Presentation

BIRKDALE HIGH SCHOOL Converting between Metric units

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BIRKDALE HIGH SCHOOL Converting between Metric units

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Ma 2 Level 6

Aim of the lesson:To teach a method for converting between metric units

BIRKDALE HIGH SCHOOL

Converting between Metric units

Here is the metric table

Metresm

Length

The length of a lorry is about 20 m

The distance to London is about 50 Km

The height of a man is 176 cm

The length of the needle is 21 mm

Grammesg

Mass

The mass of a sheet of paper is about 1 gramme

The mass of the man is 67 Kg

The mass of the drug in the medicine is 4 mg

Litresl

Capacity

A large bottle of coke is 1 l

The oil lorry holds about 3 Kl

The thimble holds about 1 ml

Area

Area

The class room is about 1 are

The football field is about ½ Hectare

An desk top in class is about 4 centiares

Using the table to convert between metric units

= 420 cm

Change 4·2 metres (m) to centimetres (cm)

4 . 2 0 0 0

= 750 mg

Change 0·75 grammes (m) to milligrammes (mg)

0 . 7 5 0 0

- Change:
- 45·2 m→cm
- 7·9 ares→milliares
- 0·07 g→cg
- 0·123 m→mm
- 2 litres→centilitres

4520

7900

7

123

200

Left click to see answers

Change 42·7 Ares (a) to Hectares (Ha)

= 0·427 km

4 2 . 7

- Change:
- 45·2 m→km
- 7900 ares→hectares
- 73·4 g→kg
- 123 m→km
- 20000 litres→kilolitres

0·0452

79

0·0734

0·123

20

Left click to see answers

You can use this table to convert between any of these metric units as long as you remember:

- Count the number and direction from the starting unit to the finishing unit

- Move the decimal in the same way

= 0·01425 km

Change 1425·2 cm to Km

1 4 2 5 . 2

0

0

= 6,000 cg

Change 0·06 Kg to cg

0 . 0 6 0 0 0 0

- Change:
- 45·2 hm→km
- 7900 milliares→centiares
- 73·4 mg→g
- 123 km→hm
- 20 millilitres→litres

0·452

790

0·0734

1230

0·02

Left click to see answers

Learn the table – it is VERY important

Vocabulary:KiloHectaDeka

Deci CentiMilli

GrammeAreLitre

MetreMetric