Đề 1 vòng loại

What is the number that should be filled in the blank? 2, 6, 11, 17, ___, 32, 41

• 26

• 24

• 28

• 30

Tony has 17 red marbles. Then, his friend gave him 12 yellow marbles. How many marbles does Tony have now?

• 39

• 5

• 29

• 15

Maria will be 13 years old 6 years later. How old is Maria now?

• 6

• 8

• 19

• 7

According to the pattern shown below, how many hats are there in the 5th group?

• 13

• 15

• 16

• 12

Yesterday was Monday. Which day of the week was it 6 days before now?

• Sunday

• Wednesday

• Monday

• Tuesday

Find the value of 11 + 13 + 5 + 9.

• 37

• 38

• 40

• 39

Which number is hidden behind the bell below? 5 + (bell) = 29 - 6

• 28

• 30

• 17

• 18

Find the value of 14 - 13 + 12 - 11 + 10 - 9 + 8 - 7 + 6.

• 4

• 6

• 10

• 8

Find the first number in the sequence of operation below.

• 10

• 16

• 12

• 8

Given that A and B represent different 1-digit numbers, find the value of B. A B + A _____ 5 2

• 8

• 7

• 5

• 4