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BBB 2023 - Grade 2 - Preliminary Round

Question 2

Refer to the figure below, how many squares are there?

Question illustration
  1. 12
  2. 10
  3. 13
  4. 14

Question 3

Draco places identical cubes on top of each other to get the figure below. At least how many cubes does he use?

Question illustration
  1. 15
  2. 12
  3. 14
  4. 16

Question 4

How many odd numbers are there from 17 to 33? (Include both end numbers)
  1. 7
  2. 9
  3. 8
  4. 16

Question 5

Find the value of $5\times8+2\times4+3\times2$.
  1. 50
  2. 52
  3. 60
  4. 54

Question 6

Find the value of $135+262+265+338$.
  1. 1100
  2. 1000
  3. 1200
  4. 900

Question 7

According to the pattern below, which number should be filled into the box?

$7,\ 13,\ 19,\ 25,\ \boxed{\phantom{31}},\ 37,\ldots$
  1. 28
  2. 35
  3. 31
  4. 36

Question 8

Delivery man has 57 apples. He divides the apples among 6 boxes. If each box contains 6 apples, how many apples does the delivery man have left?
  1. 21
  2. 33
  3. 45
  4. 31

Question 9

By observing the pattern below, what is the next figure?

Question illustration
  1. Plus shape (original A)
  2. Cross shape (original B)
  3. Ring (original C)
  4. Pentagon (original D)

Question 10

Anna’s class has 32 students in total with 15 boys. Given that Anna is a girl, how many Anna’s classmates are also girls?
  1. 18
  2. 17
  3. 15
  4. 16

Question 12

Find the value of $4\times5+4\times15+15\times6+5\times6$.
  1. 200
  2. 140
  3. 160
  4. 100

Question 13

A number is called “great” if the sum of its digits is 8. How many “great” 2-digit numbers are there?
  1. 7
  2. 8
  3. 9
  4. 6

Question 14

When Violet was born, her mother was 25 years old. Her father is 4 years older than her mother. When her father is 55 years old, how old will Violet be?
  1. 36
  2. 34
  3. 24
  4. 26

Question 15

Each day, Lucy does 5 Math exercises or 8 English exercises. From Monday to Saturday, Lucy did 20 Math exercises. How many English exercises did she do during these days?
  1. 8
  2. 24
  3. 16
  4. 32

Question 16

Refer to the figure below, how many line segments are there?

Question illustration
  1. 16
  2. 15
  3. 17
  4. 14

Question 17

Refer to the following sequence, find the difference of $A$ and $B$.

$5,\ 1,\ 12,\ 4,\ 19,\ 7,\ 26,\ 10,\ A,\ 13,\ 40,\ B,\ldots$
  1. 27
  2. 33
  3. 17
  4. 16

Question 18

Tom can fold 2 paper cranes in 6 minutes. How many paper cranes can he fold in an hour?
  1. 20
  2. 12
  3. 30
  4. 16

Question 19

Find the value of $A+B+C$.

$$\begin{array}{rrrr}&2&A&1\\&B&5&7\\+&2&4&C\\\hline&8&2&4\end{array}$$
  1. 20
  2. 12
  3. 14
  4. 11

Question 20

From 4 digits 1, 4, 6, 9, Robert forms two 2-digit numbers without digital repetition. Find the minimum sum of those 2 numbers.
  1. 83
  2. 65
  3. 55
  4. 56