HKIMO 2018 Grade 1 National Final (Heat) Set 03

If yesterday it was Thursday, which day of the week will it be 6 days later (from now)?

Peter’s father has 4 sons and Peter has 5 siblings. How many daughter(s) does Peter’s father have?

Editorial assumption: Peter and his five siblings are all the children of the same father.

20 children form a line. Alice is the 5th starting from the front. How many children are there behind her?

According to the pattern shown below, what is the number in the blank?

9, 17, 25, 33, 41, 49, __

According to the pattern shown below, how many ◎ is / are there in the 13th group?

Find the value of 2 + 6 + 13 + 14 + 17 + 28.

Find the value of 13 − 21 + 17.

Find the value of 1 − 2 − 3 − 4 − 5 + 6 + 7 + 8 + 9.

What is the number that should be filled in the blank if the equation below is correct?

41 − ____ = 22

Refer to the puzzle, find the value of A.

27 − A − A = A

Henry has 15 stamps and Greg has 7 stamps. How many stamp(s) does Greg have to ask Henry to give him to make Greg have 2 more stamps than Henry?

Fill the lines with ‘+’ and ‘−’ to make the equation below correct. (Write down the complete equation in the answer sheet.)

2 __ 7 __ 5 __ 1 = 5

Fill the lines with ‘+’ and ‘−’ to make the equation below correct. (Write down the complete equation in the answer sheet.)

2 __ 8 __ 4 __ 10 __ 3 = 13

The numbers below follow the arithmetic sequence, what is the 7th number?

58, 51, 44, 37, 30, …

Determine the result of 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 is odd or even.

How many square(s) is / are there in the figure below?

At least how many cube(s) is / are there in the figure below given that identical cubes are stacked on top of each other?

How many interior angle(s) is / are there in the polygon below?

By observing the pattern, from left to right, what is the missing figure?

According to the pattern shown below, what is the figure in the space provided?