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What are the prime numbers between 200 to 250?
prime numbers between 200 to 250: 211 223 227 229 233 239 241
How many different numbers between 250 and 400 have '2' as the tens digit?
That would be the numbers in the form "32x" (where "x" can be any digit). In other words, ten numbers.
How many numbers go into 250?
These are the eight whole numbers that go into 250 evenly: 1, 2, 5, 10, 25, 50, 125, 250.
How many of the 900 three digit numbers have at least one even digit?
775 of them. It is simpler to find out how many have no even digits: this is 5*5*5 = 125. The rest = 900 - 125 must have at least one even digit. This is not better, but this is how I got there: Of the 900, 400 have an even number in the 100's place. Of the remaining 500, 250 have an even number in the tens place, and of the remaining 250, 125 have an even number in the ones place. 400 + 250 + 125 = 775.
How many numbers can be rounded off to 250?
lets see.... 251,252,253,254,249,248,247,246,245, and many others
