Predict- I predict that this question will be about problem solving.
Read- This questions says: The digit sum for 95 is 9+5, or 14. How many two digit numbers have a digit sum of 9?
Clarify- Nothing to clarify.
BIG QUESTION- The BIG QUESTION is how many two digit numbers have a sum of nine?
Maths tool box- I will use the strategy prior knowledge.
Solve- First I will write down all the pairs to nine which are- 8+1, 7+2,6+3 and 5+4 or 81, 72 , 63 and 54. So count them all up and they equal to 4.
Summary- In summary there are four two digit numbers that have a sum of nine!