Explain how to solve problems where the percentage part and size is known but the whole is unknown
Lesson 3 / 10
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I can solve problems where a percentage part is known but the whole is unknown.
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If I know about a part, I can work out the whole from that part.
If I know what 10% is, I can multiply by 10 to calculate 100%.
If the part is a factor of 100, I can multiply the part by the other factor to calculate the whole.
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