HKIMO 2018 Grade 2 National Final (Heat) Set 03

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

8, 10, 14, 20, 28, 38, __, …

If the day after tomorrow is Wednesday, which day of the week will it be 5 days from today?

Thirty children form a column. Alice is 11th from the front. What is her position counting from the back?

Alice needs 10 minutes to finish a lap, then rests for 1 minute. How many minutes does she take to finish 10 laps?

According to the pattern shown below, how many ring symbols (◎) are there in the 9th group?

Find the value of $1+3+5+7+9+11+13+15$.

Find the value of $3×3+6×2+9×1+18×2$.

Find the value of $123+294+377+206$.

What number should be filled in the blank to make the equation correct?

$\square ÷3+13=28$

Refer to the addition puzzle below. Find the value of B.

Alice has 31 pencils and Peter has 92 pencils. How many pencils must Peter give Alice so that Peter then has 11 fewer pencils than Alice?

The total mathematics-test score of 15 students is even. Seven children have odd scores and three have even scores. Is the sum of the remaining children’s scores odd or even?

The numbers below form an arithmetic sequence. What is the 9th number?

198, 187, 176, 165, 154, …

How many 3-digit numbers have a units digit smaller than 5?

Fill the lines with + and × to make the equation correct. Write the complete equation.

1 __ 1 __ 4 __ 4 __ 5 = 22

How many squares are there in the figure below?

A prism has 16 faces. How many vertices does it have?

Observe the pattern below. What is the missing figure?

At least how many squares can be seen when viewing the figure below from the top?

At most how many lines can be formed using 6 points in a plane? (The source vocabulary gloss calls them line segments.)