expression, noun
negative number
Mathematical term for a number less than zero. Often contrasted with 正の数 (positive number).
See also: 正の数
負の数はゼロより小さい数です。
A negative number is a number less than zero.
負の数と正の数を足すと、答えはどちらかの符号になります。
When you add a negative number and a positive number, the result takes the sign of one of them.