Form two four-digit numbers from

  1. Determine how many 1000 digit numbers A have the following property:When any digit of A, aside from the first, is deleted to
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    2. Steven asked by Steven
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  2. Find the number of five digit numbers less than 40,000 in which the 33 digit numbers formed by consecutive digits are all
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  3. Form two four-digit numbers from the digits 2, 3, 4, 5, 6, 7, 8,and 9, using each digit exactly once, so that the absolute value
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    2. Matt asked by Matt
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  4. Form two four-digit numbers from the digits 2, 3, 4, 5, 6, 7, 8,and 9, using each digit exactly once, so that the absolute value
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    2. Matt asked by Matt
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  5. Form two four-digit numbers from the digits 2, 3, 4, 5, 6, 7, 8,and 9, using each digit exactly once, so that the absolute value
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    2. Matt asked by Matt
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  6. the hundred thousands digit of a six-digit even numbers is 3 more than the thousand digit,which is twice the ones digit.give at
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    2. louie asked by louie
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  7. Find the sum of all 3-digit positive numbers N that satisfy the condition that the digit sum of N is 3 times the digit sum of
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    2. rohit asked by rohit
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  8. A 4-digit number is selected from the numbers {1,2,3,4,5,6} where the digits are selected without replacement.How many 4-digit
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    2. Carrie asked by Carrie
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  9. The number uses every number 0-9 the numbers are used only once the fourth digit is 4 the first digit in the billions place is 3
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    2. Anonymous asked by Anonymous
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  10. How many international direct-dialing numbers are possible if each number consists of a four-digit area code (the first digit of
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    2. Kal Jay asked by Kal Jay
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