Skip to content / Đến nội dung
ThichHocToan.com

BBB 2022 - Grade 2 - Preliminary Round

Question 2

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

Question illustration
  1. 10
  2. 12
  3. 14
  4. 15

Question 3

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

Question illustration
  1. 9
  2. 10
  3. 11
  4. 12

Question 4

How many even numbers are there from 24 to 36? (Include both end numbers)
  1. 12
  2. 6
  3. 7
  4. 13

Question 5

Find the value of $2\times9+7\times5+3\times3$.
  1. 62
  2. 52
  3. 66
  4. 56

Question 6

Find the value of $105+271+395+129$.
  1. 900
  2. 1000
  3. 1100
  4. 800

Question 7

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

$3,9,15,21,\square,33,\ldots$
  1. 28
  2. 27
  3. 30
  4. 22

Question 8

Teacher has 35 pens. She divides the pens equally among 12 students. If each student gets 2 pens, how many pens does the teacher have left?
  1. 15
  2. 23
  3. 33
  4. 11

Question 9

By observing the pattern, what is the next figure?

Question illustration
  1. Question illustration
  2. Question illustration
  3. Question illustration
  4. Question illustration

Question 10

37 children form a row. There are 11 children standing on the left of Isabelle. How many children are standing on the right of Isabelle?
  1. 24
  2. 25
  3. 26
  4. 27

Question 12

A number is called “special” if the sum of its digits is 10. How many “special” 2-digit numbers are there?
  1. 5
  2. 9
  3. 11
  4. 10

Question 13

Find the value of $3\times5+3\times25+15\times4+5\times4$.
  1. 170
  2. 180
  3. 200
  4. 160

Question 14

When Jennie was born, her mother was 26 years old. Her father is 7 years older than her mother. When her father is 62 years old, how old will Jennie be?
  1. 39
  2. 33
  3. 29
  4. 43

Question 15

Each day, Anna eats 4 candies or 2 cupcakes. After 1 week, Anna has eaten exactly 12 candies. How many cupcakes has she eaten during that week?
  1. 8
  2. 6
  3. 10
  4. 12

Question 16

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

Question illustration
  1. 15
  2. 12
  3. 17
  4. 18

Question 17

Refer to the following sequence, find the value of $A+B$.

$5,55,13,49,21,43,29,37,37,31,A,B,\ldots$
  1. 76
  2. 74
  3. 72
  4. 70

Question 18

If Anna can fold 2 stars in 5 minutes, how many stars can she fold in half an hour?
  1. 10
  2. 12
  3. 30
  4. 24

Question 20

From 4 digits 3, 7, 5, 2, Trisha forms two 2-digit numbers without digital repetition. Find the maximum sum of those 2 numbers.
  1. 125
  2. 107
  3. 135
  4. 117