Number Series Challenge

Find the missing number in the series: 2, 4, 6, 8, __, 12

• 10

• 5

• 14

• 10

What number comes next in the series: 3, 6, 12, 24, __

• 30

• 18

• 48

• 36

Fill in the blank: 5, 10, 20, 40, __, 160

• 60

• 100

• 80

• 120

Complete the series: 1, 4, 9, 16, __, 36

• 25

• 49

• 30

• 20

Identify the missing number: 13, 16, 19, __, 25

• 27

• 22

• 21

• 24

What is the next number in the sequence: 1, 1, 2, 3, 5, 8, __

• 13

• 21

• 10

• 34

Fill in the blank: 10, 20, 40, 80, __, 320

• 240

• 300

• 160

• 120

Find the missing number: 25, 36, 49, __, 81

• 81

• 64

• 100

• 121

What comes next in the series: 2, 3, 5, 7, 11, __

• 9

• 17

• 13

• 15

Complete the sequence: 100, 50, 25, 12.5, __, 3.125

• 6.25

• 0.625

• 1.25

• 4.5