University of Edinburgh

BSL Maths Glossary - standard form - Definition (symbol n x 10n or 10-n)

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Standard form or Scientific notation is a shorter form of writing very large or very small numbers (with many digits after the decimal point.)
You would write the first digit of the number and then a decimal point and multiply to the power of the number of digits falling after the decimal.
If it is a very small number and the decimal is being moved down then it would be multiplied to the power minus the number of digits.