### Math Olympiad K1_22 on Day:.........Month:..........Year:...........

Total Core =

Question 1: Find the value of 5 - 5 + 5 - 5 + 5 - 5 + 5 + 5
Question 2: Find the value of 6 - 6 + 6 - 6 + 6 - 6 + 6 - 6 + 6
Question 3: Find the value of 7 - 7 + 7 - 7 + 7 - 7 + 7 - 7 + 7
Question 4: According to the pattern shown below. What is the number in the blank ?

2, 4, 6, 8, 10, ....., 14, 16, 18
Question 5: According to the pattern shown below. What is the number in the blank ?

3, 6, 9, 12, 15, ....., 21, 24, 27
Question 6: According to the pattern shown below. What is the number in the blank ?

5, 10, 15, 20, 25, 30, ....., 40, 45
Question 7: According to the pattern shown below. What is the number in the blank ?

1, 4, 7, 10, 13, ....
Question 8: According to the pattern shown below. What is the number in the blank ?

1, 7, 13, 19, 25, 31, ......
Question 9: According to the pattern shown below. What is the number in the blank ?

1, 8, 15, 22, 29, 36, ......
Question 10: According to the pattern shown below. What is the number in the blank ?

1, 5, 9, 13, 17, ......