They are also called one. There are synonyms and mathematical terms: unit, or multiplicative identity but there is little advantage in using these terms.
When one of the numbers is a factor of the other.
additive inverses
Absolute value
Yes, if one of the numbers is a factor of the other.
Two numbers that are equal distance from zero on a number line are called "opposites" or "additive inverses." For example, -3 and 3 are opposites because they are both three units away from zero, one in the negative direction and the other in the positive direction. The sum of these two numbers equals zero.
To find two equal numbers that total 1.347, you can divide 1.347 by 2. This results in 0.6735, so the two equal numbers are 0.6735 and 0.6735.
2,4,6,8,10,12,14,16,18
yes
no it doesnt. two negative numbers equal a negative number. two postivie numbers equal a positive number. one negative and one positive number equal a negative number.
1
For two numbers to be equidistant from zero, one must be the negative of the other. As one is the negative of the other, it is the additive inverse of that number. The sum of an number and its additive inverse is zero.
Odd numbers are those that cannot be evenly split into two equal amounts of whole numbers. For instance, 4 can be split into two equal amounts of 2; 6 can be split into 3. These are called "Even" numbers because they can be split into even (or equal) amounts. An odd number like 1, or 3, or 5, or 7 and so on cannot be split into two equal amounts of whole numbers. They are called, "odd" numbers simply because they are not 'Even' numbers. They could have been called, "Uneven" numbers, but a shorter word seemed easier. Odd, isn't it.