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  • 更新 2022-09-03
  • 科目 英语
  • 题型 阅读理解
  • 难度 较难
  • 浏览 588

Anybody can learn to count fast if he knows the secret of following trick.
Ask your friend to write any five-figure (五位) number on the blackboard. Then you write your five-figure number under it. You choose your figures so that each one with the figure above it will  make nine.
Tell your friend to put a third five-figure number under your number. Then you write a fourth number in the same way. After he has written the fifth number, you draw a line under it and quickly write the sum.(总和). You may even write it from left to right..
How do you do it ? You take away two from the fifth number and put two in front of your answer. Is it interesting?
If your friend’s number is 76815, your number must be_____________________.

A.23184 B.54613 C.93184 D.99999

How many six-figure numbers are there on the blackboard at last?

A.Three B.One C.Five D.Four

If the fifth number is 49834, the sum will be_____________________.

A.249834 B.298344 C.298342 D.249832
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Anybodycanlearntocountfastifhe