Đề 3 vòng loại

According to the pattern shown below, find the number to replace the question mark: 2, 5, 9, 14, 20, ?, ...

• 26

• 27

• 28

• 29

There are 15 boys and 12 girls in Jennie's class. How many classmates does she have?

• 24

• 25

• 26

• 27

After 6 years, Linda will be 15 years old. How old is Linda now?

• 6

• 21

• 11

• 9

According to the pattern shown below, how many suns are there in the 10th group?

• 20

• 22

• 24

• 26

The day before yesterday was Monday. Which day of the week will it be 4 days later?

• Tuesday

• Wednesday

• Saturday

• Sunday

Find the value of 12 + 6 + 7 + 13.

• 28

• 38

• 37

• 27

Which number is hidden inside the backpack below?

• 33

• 35

• 13

• 15

Find the value of 10 - 9 + 8 - 7 + 6 - 5 + 4 - 3 + 2 - 1.

• 4

• 5

• 6

• 3

What is the first number in the sequence: [ ? ] → -10 → +7 → +6 → 23?

• 26

• 17

• 21

• 20

Given that A and B represent different 1-digit numbers, what is the value of B in the following addition?

• 7

• 8

• 4

• 2