Question

A number less than seven

Answer 1

1, 2, 3, 4, 5, or 6.

Explanation:

7 is greater than 1, 2, 3, 4, 5, or 6. Those are less than 7. Less than could also mean subtraction, but there is not a number to subtract with here.

Answer 2

x < 7 or x is less than seven
any variable can be used but x is most common