Mathematical Process Standards>Analyzing Mathematical Relationships to Connect Ideas(TEKS.Math.6.1.F) Practice Test

One undoes the other; they are inverse operations.

They produce different results unless the number is even.

Multiplying by $1/2$ equals dividing by 2 because both halve the number.

Multiplying by $1/2$ is only for fractions, while dividing by 2 is only for whole numbers.