The number zero!
Multiplied by itself = 0 x 0 = 0
Added to itself = 0 + 0 = 0!
18
any number (n) added to zero equals that same number (n). n + 0 = n
Only the number two, as any number added to itself is equal to the number x 2. Technically the number 0 would also qualify, as 0 x 2 = 0 and 0+0=0
-- Nothing happens to it. -- You generate a new number that's ten times the size of the original number. -- The new number has all the same digits as the original number had, in the same order. But the decimal point in the new number is one digit to the right of where it was in the original number.
0.5+0.5= 1.
18
any number (n) added to zero equals that same number (n). n + 0 = n
Only the number two, as any number added to itself is equal to the number x 2. Technically the number 0 would also qualify, as 0 x 2 = 0 and 0+0=0
take any negative number, and subtract a positive number..that is the same as adding a negative number and two negative numbers added together are a negative number.
1, 2 and 3 are the same whether you multiply or add them.
-- Nothing happens to it. -- You generate a new number that's ten times the size of the original number. -- The new number has all the same digits as the original number had, in the same order. But the decimal point in the new number is one digit to the right of where it was in the original number.
8.71...
it equals the same number you multiply it by
6
6
The opposite of 0.1 is -0.1. In mathematics, the opposite of a number is the number that, when added to the original number, equals zero. Since 0.1 is a positive number, its opposite would be a negative number with the same magnitude but in the opposite direction on the number line.
0.5+0.5= 1.