Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Complete Sequences by Filling in Gaps

In this worksheet, students must fill in the gaps in the given number sequences.

'Complete Sequences by Filling in Gaps' worksheet

Key stage:  KS 2

Year:  Year 3 11+ worksheets

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Sequences

Difficulty level:  

Worksheet Overview

In this worksheet, we will learn how to complete a sequence by filling in the gaps.

 

Example 1

Complete the sequence by filling in the gaps:

1 A 15 22 29 B

 

Answer

Look for clues.

Here we look at 15, 22 and 29 and notice that 22 - 15 = 7 and 29 - 22 = 7, so the gap is 7.

The sequence consists of numbers that increase by 7.

A = 1 + 7 = 8

B = 29 + 7 = 36

 

1 8 15 22 29 36

 

 

Example 2

Complete the sequence by filling in the gaps:

A 30 B 54 C 78

 

Answer

This is harder.

54 - 30 = 24

78 - 54 = 24 also.

The gap will be half this, i.e. 12.

 

A = 30 - 12 = 18

B = 30 + 12 = 42

C = 54 + 12 = 66

 

18 30 42 54 66 78

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started
laptop

Try an activity or get started for free

  • National Tutoring Awards 2023 Shortlisted / Parents
    National Tutoring Awards 2023 Shortlisted
  • Private-Tutoring-WINNER-EducationInvestor-Awards / Parents
    Winner - Private Tutoring
  • Bett Awards Finalist / Parents
    Finalist
  • Winner - Best for Home Learning / Parents
    Winner - Best for Home Learning / Parents