Question

Write a 2 digit number whose sum of digits is 11​

Answer 1

Explanation:

11 = 6+5 or 9+2 or 8+3 or 4+7

65 or 56

92 or 29

83 or 38

47 or 74

Answer 2

There are several possible 2 digit numbers whose sum of digits is 11. One way to find them is to start with the smallest 2 digit number, which is 10, and add 1 to both digits until the sum is 11

Explanation:

10 + 1 + 1 = 12 (1 + 2 = 3)

12 + 1 + 1 = 14 (1 + 4 = 5)

14 + 1 + 1 = 16 (1 + 6 = 7)

16 + 1 + 1 = 18 (1 + 8 = 11)

So, one possible answer is 18. Another way to find them is to start with the largest 2 digit number, which is 99, and subtract 1 from both digits until the sum is 11. For example:

99 - 1 - 1 = 97 (9 + 7 = 16)

97 - 1 - 1 = 95 (9 + 5 = 14)

95 - 1 - 1 = 93 (9 + 3 = 11)

So, another possible answer is 93. You can also find other answers by using different combinations of digits that add up to 11, such as:

29 (2 + 9 = 11)

38 (3 + 8 = 11)

47 (4 + 7 = 11)

56 (5 + 6 = 11)