Question

听说你的数学不错，你能用英语计算下列各题吗？

例: (five) + (four) － (one) = (eight)
1. (three) + (four) － (     ) = (one)
2. (four) + (one) － (     ) = (three)
3. (six) + (     ) － (four) = (five)
4. (     ) + (five) － (three) = (seven)
5. (two) + (eight) － (one) = (     )

Answer 1

1. six  2. two  3. three  4. five  5. nine