# What is the additive inverse of -18?

The additive inverse is the sum of two numbers that will equal zero. The additive inverse of -18 is 18.

### Find the sum of the opposite of -18 and its additive inverse?

The additive inverse of -18 is +18. Hence if you want to add them, Remember the additive inverse of a negative number will be its positive. Its simple, just remove the negativity symbol. So -5 additive inverse is +5. And for a positive number just put a negativity symbol in front of it. :D. Hence +10 will become -10. Remember the additive inverses always add up to give zero!! Therefore you can always use this…

### What is the inverse for numbers under addition?

A number and its additive inverse add up to zero. If a number has no sign, add a "-" in front of it to get its additive inverse. The additive inverse of 5 is -5. The additive inverse of x is -x. If a number has a minus sign, take it away to get its additive inverse. The additive inverse of -10 is 10. The additive inverse of -y is y.

### What is the difference between additive and multiplicative inverse?

The additive inverse is the inverse under addition; the multiplicative inverse is the inverse under multiplication. For example, the additive inverse of any real or complex number is its negative: the inverse of 3 is -3 and vice versa. The multiplicative inverse of a number other than 0 (which has no such inverse) is its reciprocal: the inverse of 2 is 1/2, and vice versa. Adding a number and its additive inverse gives the additive…

### Another name for additive inverse?

As far as positive numbers are concerned, the additive inverse of a positive number is a negative number with the same magnitude (i.e. the additive inverse of 5 is -5). It would be wrong to simply say that "negative" and "additive inverse" are correct, because the additive inverse of a negative number is a positive number.

### What is the additive inverse of 9.1?

We are talking group theory here. A group with addition has an additive inverse. A group with multiplication has a multiplicative inverse. The additive inverse of a number x is a y with x + y = 0. The additive inverse of x is written -x. Hence, the additive inverse of 9.1 equals -9.1. The reason that this question can arise is that beyond groups, there are rings and fields. Rings and fields have, besides…

### How do you find the additive inverse of a complex number?

You take the additive invers of the real and of the imaginary part. For instance, the additive inverse of: (3 - 5i) is (-3 + 5i).You take the additive invers of the real and of the imaginary part. For instance, the additive inverse of: (3 - 5i) is (-3 + 5i). You take the additive invers of the real and of the imaginary part. For instance, the additive inverse of: (3 - 5i) is (-3…

### When a number is added to its additive inverse what is the sum equal to?

Number + additive inverse of number = 0, by definition (the additive inverse of a number is that number, which when added to the original number, results in a sum of 0) Number + additive inverse of number = 0, by definition (the additive inverse of a number is that number, which when added to the original number, results in a sum of 0)