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Earn +20 ptsQ: How many 5 digit palindromes equal the sum of 18?
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How many three digit numbers have the sum of their digits equal to 22?
21.
How many numbers are equal to the sum of two odd one digit numbers?
2,4,6,8,10,12,14,16,18
Which two-digit number is equal to the sum of its firstdigit plus the square of its second digit?
89
How many 5 digits numbers are there whose digits sum to 22?
There are 5460 five digit numbers with a digit sum of 22.
How many integers between 200 and 300 have the sum of their digits equal to 15?
Since the first integer of the 3-digit numbers must be 2, the sum of the second and the third digits would be 13.Since the largest digit is 9, the 3-digit numbers could be 249, 294, 258, 285, 267, and 276.Thus, there are 6 integers between 200 and 300 whose sum of their digits is 15.
Related questions
How many positive four-digit integer palindromes have 12 as the sum of the digits of the munber?
81
How many 4 digit palindromes are multiples of 9?
Nine. The sum of the digits must be a multiple of 9; because of the repeated digits, this is only possible if the first two digits add up to 9.
What are all the four and five digit numbers that have a digit sum of 6 and are palindromes?
1221, 2112, 3003, 10401, 11211, 12021
How many two-digit numbers has a digit sum equal to 5?
There are five such numbers.
How many positive four-digit integer palindromes have 12 as the sum of the digits of the number?
Six. 1551 2442 3333 4224 5115 6006
How many positive 3-digit integers can be formed that the 100s digit is equal to the sum of the 10s and 1s digit?
54
How many three digit numbers have the sum of their digits equal to 22?
21.
How many two-digit primes have the sum of the digits equal to 8?
Three of them.
How many numbers are equal to the sum of two odd one digit numbers?
2,4,6,8,10,12,14,16,18
How many three digit numbers have the sum of their numbers equal to 5?
30,25,15,20, or 10.
which 2 digit number is equal to the sum of its first digit plus the square of its second digit?
89
How many 3 digit numbers have the sum of their digits equal to 5?
002+002+001=005
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