De Nederlandsche Bank Number Sequence Examples
See number sequence examples for the De Nederlandsche Bank assessment and learn what patterns to expect in GITP aptitude testing.
What to expect from number sequences
In the De Nederlandsche Bank assessment, number sequences are part of the aptitude test administered by GITP. The task is to identify the pattern in a series of numbers and determine the next step with accuracy and speed.
The examples in this guide are meant to show the kinds of patterns that commonly appear, such as simple arithmetic changes, repeated operations, or sequences that combine more than one rule. The goal is to help you recognize the structure quickly when the questions are presented under time pressure.
Try a sample question right away
This gives you an immediate feel for the question style and the value of the practice environment.
How these examples fit the assessment
Which parts you need to complete is stated in your invitation email or in the GITP online platform. The number sequence module may be part of a wider assessment that can also include matrices, analogies, and figure sequences, so it helps to prepare with a clear view of the format you are likely to face.
Because results are compared with a norm group, careful practice matters. Example situations are useful for learning how to spot additions, subtractions, multiplications, divisions, or patterns with alternating steps before the pressure of the actual test begins.
Examples of common pattern types
A straightforward example is a sequence that increases by the same amount each time, such as 3, 6, 9, 12. In practice, the challenge is less about the arithmetic itself and more about noticing the rule quickly before moving on to the next item.
Another common situation is a sequence that alternates between two operations, for example adding one number and then adding another. These patterns can be easy to miss if you only check the last two terms, so it helps to read the full sequence before deciding on the next number.
You may also see sequences that use multiplication, division, or a combination of operations. In those cases, the key is to test whether the same change repeats or whether the numbers follow a layered structure that only becomes clear after a closer look.
A practical way to work through the questions
Start by looking for the simplest rule first. Check whether the numbers move up or down by a fixed amount, or whether they follow a repeated step that becomes visible when you compare several terms instead of only the final pair.
If the pattern is not obvious, move to a broader check. Compare differences, ratios, and any repetition in the sequence order, then decide which rule fits all visible numbers best. This approach helps prevent early assumptions from leading you in the wrong direction.
Use the examples as training for pace as well as accuracy. The aim is to build a habit of reading the sequence calmly, identifying the pattern methodically, and answering with enough confidence to keep working within the time limit.