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# Rules in adding like and unlike sign?

Wiki User

2011-08-25 12:15:31

1. If the positive number is larger in absolute value, subtract the absolute values of the numbers, and then put the positive sign in front of the answer.

2. If the negative number has larger absolute value, subtract the absolute values of the numbers and then put the negative sign in front of the answer.

3 . If they are the same, the sum is 0.

Example of 1: 10+(-5). We know that 10 is larger absolute value. S0 10-5=5 and put a + in front. The answer is +5 or just 5.

Example of 2. -10+5. The =10 has larger absolute value. 10-5=5. Now put a - sign so the answer is -5

Example of 3. is is -5+5. The numbers have the same absolute value so their sum is 0.

Remember the absolute value of x, denoted | x | is the distance of x from zero on the number line. So |-3|=3 and |5|=5 since =3 is 3 units from 0 on the number line and 5 is 5 units from 0 on the number

hey its me mhel jesson valenzuela

Wiki User

2011-08-25 12:15:31
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