mentally calculate

心算

频率: 6.55.1 每百万词

To calculate something in one's head, without using a calculator or paper.

在头脑中计算，不使用计算器或纸笔。

calculateADVERB + VERB

分类:

mentally

例句 (10)

mentally calculate = 心算 (在头脑中计算，不使用计算器或纸笔。)

  • A cashier needs to be able to mentally calculate change quickly.收银员需要能够快速心算找零。
  • I quickly mentally calculated the tip to be 20% of the bill.我快速心算出小费是账单的20%。
  • Can you mentally calculate 17 times 25?你能心算出17乘以25吗？
  • Mentally calculating large sums is a skill that requires practice.心算大额数字是一项需要练习的技能。
  • He was trying to mentally calculate his potential poker winnings while maintaining a straight face.他一边保持着扑克脸，一边试图心算自己可能赢到的钱。
  • Before you use the calculator, try to mentally calculate the answer first.在使用计算器之前，先试着心算一下答案。
  • She has always been able to mentally calculate complex equations with ease.她总是能轻松地心算复杂的方程式。
  • The engineer mentally calculates the load-bearing capacity before sketching the design.工程师在草拟设计图前会心算承重能力。
  • If you could mentally calculate the total cost, we could save some time.如果你能心算出总成本，我们就能节省一些时间。
  • Although it was a difficult problem, he managed to mentally calculate the solution in under a minute.虽然这是个难题，但他还是成功地在一分钟内心算出了答案。