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Teacher: Tell me please, Billy, how many zeros are written in one million.
Student: Six, sir.
Teacher: Well, and how many zeros are written in half-million ?
Student: Three, sir.
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Teacher: How many will it remain, if to subtract 1 from 100 ?
Student: Two zeros.
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Teacher: A cow gives 20 liters of milk a day. How many liters of milk is it possible to get for a week ?
Student: But we don’t know how many days a week a cow works.
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Father writes a letter to his son:
“Dear John! I send you 50 dollars, as you asked. By the way, please remember that the number 50 is written with one zero, but not with two.”
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