Metric Conversions, Giving The Correct Amount For Injection, Calculating Infusion Times, Solution Strength Worksheet With Answers
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22LDU Maths, Stats and Numeracy Support
Metric Conversions
Here are some metric weights arranged in size order, starting with the biggest:-
Kg (kilogram)
g (gram)
mg (milligram)
mcg (microgram)
Each one is a thousand (1000) times smaller than the one before.
The same rule applies for the metric volumes below
L (Litre)
ml (millilitre)
big
If you want to convert from
to
you multiply by 1000 by moving the decimal
small
point 3 places to the right.
big
If you want to convert from
to
you divide by 1000 by moving the decimal
small
point 3 places to the left.
Example 1: Convert 7.5 kg to g
Answer 1: 7500 g
Example 2: Convert 7280 mcg to mg
Answer 2: 7.28 mg
Example 3: Convert 1.5 Litres to ml
Answer 3: 1500 ml
Example 4: Convert 55 ml to Litres
Answer 4: 0.055 litres
Try the following questions
1) Convert 4.56 g to mg
2) Change 75 mcg to mg
3) Convert 0.78 mg to mcg
4) Change 950 mg to g
5) Convert 0.5 Litres to ml
6) Change 452 ml to Litres
numeracy@mdx.ac.uk
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