Sum of Digits
Pro Problems > Math > Number and Quantity > Number Theory > DigitsSum of Digits
Find the sum of all the integers between one and 100 which have 14 as the sum of their digits.
Solution
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In the addition problem below, some digits are missing. They have been replaced by x and y. Find the values of x and y.
3xy2 + 3y1 = 40x3