The term signed numbers refers to the negative and positive numbers given. A number with no sign given is referred to as 'positive signed number'. On a number line, all the terms that are right of 0 are known as positive numbers. Similarly, all the numbers that are left of 0 are known as negative numbers. For example, -1, -4.1 are negative numbers. While 2.6 and 4 are positive numbers. It is very easy to multiply signed numbers with decimals.
Grade 7
Signed Number Operations
7.NS.A.2.A