“加”用plus，and或add表示；
“等于”用is，make，equal等词表示。
1 + 1 = ？可表示为：How much is one plus two?
1 + 2 = 3 可表示为：
One plus two is three.
One and two is equal to three.
One and two make(s) three.
One added to two equals three.
扩展资料：
“减”用minus或take from表示。
9 - 3 = 可表示为：How much is nine minus three?
Nine minus three is six.
Take three from nine and the remainder is six.
Three (taken) from nine is six.
Johnhockson
