What's sixty plus thirty?回答

What's sixty plus thirty?回答 What's thirty plus four?(回答问题） what's thirteen plus twenty?It's thirty-three. what‘s ten plus twenty做出真确回答 what s.plus.. What is (twenty-three and thirty-seven)?---Sixty.考点是什么? What's one plus one What’s ten plus ten What‘s eighteen plus ten? thirty plus thirteen What‘s ten plus ten 中的plus是什么词性? what's twenty plus twenty的意思