Canadian Forces Aptitude Test (CFAT) Practice

In a mathematical context, the notation 'cross 1' typically refers to a multiplication operation, especially in scenarios involving vectors, matrices, or other numerical constructs where 'cross' can denote cross-products. The term 'cross' is often associated with operations that involve combining two entities to produce a third, with multiplication being a fundamental operation in such contexts.

For instance, when working with complex numbers or certain algebraic structures, 'cross' may imply multiplicative interactions. The understanding of 'cross' as multiplication aligns with common terminology in mathematics, making it a valid interpretation.

The other operations — division, addition, and subtraction — do not correspond to the term 'cross' in standard mathematical usage. Division is commonly indicated with a slash or the term 'over', while addition and subtraction use plus and minus signs, respectively. Hence, the interpretation of 'cross' as multiplication stands out as the most accurate in this context.