### Math Olympiad K1_14 on Day:.........Month:..........Year:...........

Total Core =

Question 1: If D is a tow digits even number with digits 1, 2, 4. What is the smallest possible number of D ?
Question 2: Ten years ago, Lyly was 14 years old. How old is Lyly now ?
Question 3: Eight years ago, Ed was 7 years old. How old is Ed now ?
Question 4: Three years ago, Tong was 8 years old. How old is Tong now ?
Question 5: Ten years ago, Song was 18 years old. How old is Song now ?
Question 6: If X is a 1 digit number. What is the value of X ?

17 - X = 12
Question 7: If X is a 1 digit number. What is the value of X ?

19 - X = 15
Question 8: If X is a 1 digit number. What is the value of X ?

20 - X = 18
Question 9: If X is a 1 digit number. What is the value of X ?

22 - X = 18
Question 10: If X is a 1 digit number. What is the value of X ?

30 - X = 24