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If 9, 18, 27, 36, 45, 54, 63, 72, 81 and 99 all have the same emoji it is because if you choose a number 10-19 your answer will be 9, if you choose a number 20-29 your answer will be 18, if you choose a number 30-39 your answer will be 27, if you choose a number 40-49 it will be 36, if you choose a number 50-59 then your answer will be 45, if you choose a number 60-69 then your answer will be 54, if you choose a number 70-79 then your answer will be 63, if you choose choose a number 80-89 then your answer will be 72 and if you choose a number 90-99 then your answer will be 81. It just so happens to be that all those numbers are in the 9 times tables and they all have the same emoji! That’s why it always works!