Number Sequencing

A sequence has 2, 4, 6, 8, 10, 12, 14. The rule for the sequence is;

• Add 1

• Add 2

What is the next number in this sequence 4, 8, 12, ......, 20?

• 10

• 16

• 18

The rule for this sequence 18, 15, 12, 9, 6, 3, 0 is;

• Add 3

• divide by 3

• subtract 3

12, ..........., 32, 42, 52. The missing number is;

• 22

• 23

• 24

103, 107, 111, 115, 119, 123. The rule for this sequence is;

• Add 100

• Add 104

• Add 4

• subtract 4

Noora makes a sequence of numbers , starting with 13. She subtracted 4 each time. What are the next 3 numbers in the sequence?

• 14, 17, 20

• 8, 4, 0

• 9, 5, 1

150, 155, 160, 165, .............. . The missing number is;

• 170

• 175

• 180

100, 200, 300, 400, 500. The rule for this sequence is

• Add 100

• Add 10

• subtract 10

58, 51, 44, ......., 30. The missing number is;

• 40

• 37

• 35

180, 140, 100, 60, ............ The missing number is;

• 40

• 50

• 30

• 20