1)
10⁻³ * 0,001 = 10⁻³ * 10⁻³ = 10⁻³⁻³ = 10⁻⁶,
или:
10⁻³ * 0,001 = 0,001 * 0,001 = 0,000001,
2)
13⁰ * 13⁻² : 13⁻⁴ = 13⁰⁺⁽⁻²⁾⁻⁽⁻⁴⁾ = 13⁰⁻²⁺⁴ = 13² = 169,
3)
( (3⁻²)⁻² * 9⁻¹ ) / 27 =
= ( (3⁻²°⁽⁻²⁾ * (3²)⁻¹ ) / 3³ =
= 3⁴ * 3⁻² : 3³ =
= 3⁴⁻²⁻³ = 3⁻¹ = 1 / 3¹ = 1/3,
4)
(25⁻² * 125) / 5³ =
= ( (5²)⁻² * 5³) / 5³ =
= 5⁻⁴ * 5³ : 5³ =
= 5⁻⁴ = 1 / 5⁴ = 1/625
