Standard form can be calculated on a scientific calculator with the ‘exponent’ button. The exponent button may be shown as EXP, EE or × 10 x. For example, to input 1.2 × 10 7, press: ...

Pages Using a calculator A scientific calculator has two 'log' buttons on it. These are marked log and ln. The log key is used for calculations of the form log 10 x.