This Fill the Missing Numbers worksheet offers extended practice with numbers 1 to 20, using three missing numbers in each sequence to encourage deeper reasoning.
Children analyze each sequence and fill in the missing numbers to complete it correctly.
This page works well as a review, challenge, or assessment-style activity.
What’s Included in This Worksheet
This advanced worksheet includes:
- Five number sequences, each made up of six numbers
- Three missing numbers in every sequence
- Number ranges covering 1–20
- Carefully placed blanks to avoid simple counting patterns
- A clean, distraction free layout for focused learning
The problems require children to think ahead and backward within each sequence.
How to Use This Worksheet
Instruction:
Fill in the missing numbers.
Helpful tips for adults:
- Encourage children to identify the first and last numbers
- Ask how many numbers are missing and where they belong
- Allow use of number lines or counting strategies if needed
- Discuss solutions together to reinforce understanding
This worksheet works well with pencils and supports quiet, independent problem solving.
Skills This Worksheet Supports
Completing this worksheet helps children develop:
- Advanced number sequencing
- Understanding of numbers 1–20
- Logical reasoning
- Working memory
- Visual attention
- Problem solving confidence
These skills support readiness for addition, subtraction, and early mental math.
Why This Page Works as a Review
By revisiting familiar numbers with increased difficulty, children strengthen their understanding without learning new concepts.
This makes the worksheet ideal for review, extension, or informal assessment.
Teachers and parents can use it to observe how children approach multi step number problems.
Who This Worksheet Is For
This worksheet is suitable for:
- Kindergarten students
- Early primary learners
- Confident math learners
- Homeschool learning
- Classroom math centers
Numbered worksheets allow children to complete pages in any order and revisit them as needed.
Download the free PDF below and support your child’s confidence with advanced missing number sequences through structured, hands on practice.
Explore more printable math worksheets in our Counting Activities Collection.
