Standard form close standard formA number between 1 and 10 multiplied by a power of ten, eg 193 in standard form is written as 1·93 × 10², 0·193 in standard form is written as 1·93 ×10⁻¹ ...

For example, 1000 is greater than 10, so the power is positive. 1000 in standard form is 1 x 10³ For a number greater or equal to 1 and less than 10, the power is zero.