[問題]考古題Form19 dec3 PS-Q08

[凱薩琳]

The additive inverse of a number n is the number that when added to n gives the sum of zero.What is the additive inverse of 3+(-13)?

(A)-16
(B)-10
(C)0
(D)10
(E)16

Ans:D

[StanleyHuang]

3+(-13) = -10
-10 要加多少才會等於 0 ？ 答案是10

所以 -10 的 additive inverse就是 10

[凱薩琳]

原來是醬..謝謝唷