NNAT Number Series Patterns

Question 1

In a visual number pattern showing 2, 4, 8, 16, what operation determines the next number?

Accepted Answer

Multiplying by 2 each time

Answer

Adding 2 each time

Answer

Adding the previous two numbers

Answer

Subtracting from 20

Question 2

A sequence shows shapes with 1, 3, 6, 10 dots. What pattern determines the next count?

Accepted Answer

Triangular numbers — each adds one more than the previous addition (1, +2, +3, +4, +5)

Answer

Doubling each time

Answer

Adding 3 each time

Answer

Random arrangement

Question 3

A visual sequence alternates between adding 3 and subtracting 1. Starting at 2: 2, 5, 4, 7, 6. What comes next?

Accepted Answer

9 (adding 3 to 6)

Answer

5 (subtracting 1 from 6)

Answer

8

Answer

10

Question 4

What strategy helps identify complex number sequence patterns?

Accepted Answer

Calculate the differences between consecutive terms, then check if those differences form their own pattern

Answer

Always assume multiplication

Answer

Only look at the first and last terms

Answer

Guess the average

Question 5

A sequence shows: 1, 1, 2, 3, 5, 8. What comes next?

Accepted Answer

13 (each number is the sum of the two before it)

Answer

10

Answer

11

Answer

16

Question 6

Visual tiles show 4, 9, 16, 25. What pattern connects these numbers?

Accepted Answer

They are perfect squares: 2², 3², 4², 5²

Answer

They increase by 5 each time

Answer

They double each time

Answer

They are prime numbers