speedy calculation

英 美
  • 速算
  • calculation n.计算;估计;深思熟虑
  • speedy adj.快速的;高速的;迅速的;敏捷的;立即的
    1. He is good at rapid calculation, and can immediately tell the answer of an arithmetic formula on seeing it.
      他的速算能力很强,看过算式后,得数就能脱口而出。