Radio 4 in Four - Tips to help you impress people doing hard maths in your head - ÃÛÑ¿´«Ã½ Sounds

Radio 4 in Four - Tips to help you impress people doing hard maths in your head - ÃÛÑ¿´«Ã½ Sounds


Tips to help you impress people doing hard maths in your head

How to manage big or complicated numbers when you are stuck without a calculator.

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