Signed numbers refer to the negative and positive numbers. If there is no sign, then the term is automatically known as 'positive signed number'. On a number line, all the terms that are right of 0 are known as negative numbers. Similarly, all the numbers that are left of 0 are known as positive numbers. For example, -1, -5 are negative numbers. While 1 and 6 are positive numbers. It is very easy to subtract signed numbers.

Grade 7

Signed Number Operations

7.NS.A.1.D