Number Sequences Worksheet — KS1 — Intermediate
Number Sequences worksheet for Key Stage 1 / Year 1-2 (Ages 5-7). Intermediate level maths practice, aligned to the UK National Curriculum. Print-ready with answer key included.
Number Sequences Adventure
Key Stage 1 / Year 1-2 (Ages 5-7) - Intermediate Level
Instructions: This worksheet will help you practice number sequences. You'll find activities to complete patterns, fill in missing numbers, and more! Let's explore the world of numbers together.
Fill in the Missing Numbers
Look at each number sequence carefully. Fill in the missing numbers in the sequence. Remember to think about the pattern!
1. 2, 4, __, 8, 10
2. 5, 10, 15, __, 25
3. 1, 3, 5, __, 9
4. 10, 20, __, 40, 50
5. 7, __, 11, 13, 15
Counting by Twos
Count by twos to fill in the missing numbers. Write the numbers in the boxes provided.
1. 2, __, 6, 8, __
2. __, 4, 6, __, 10
3. 12, __, 16, __, 20
Number Pattern Puzzles
Each row has a number pattern. Find the pattern and complete the sequence by writing the missing numbers in the boxes.
1. 3, 6, 9, __, 15
2. 8, __, 12, 14, 16
3. 25, 30, __, 40, 45
Complete the Sequence
Complete each sequence by finding the rule. Write the missing numbers in the boxes.
1. 10, 15, __, 25, 30
2. 5, __, 15, 20, __
3. 2, 4, 6, __, 10
Skip Counting Fun
Practice skip counting by filling in the blanks. Use the pattern to help you.
1. 5, 10, __, 20, 25
2. __, 14, 16, 18, __
3. 30, __, 40, 45, __
Find the Next Number
Look at the pattern in each sequence and find the next number. Write your answer in the box.
1. 1, 2, 4, 8, __
2. 3, 6, 12, 24, __
3. 5, 10, 20, 40, __
Sequence Challenge
Challenge yourself with these sequences. Find the missing numbers and complete the patterns.
1. 15, 20, __, 30, 35
2. 9, 18, __, 36, 45
3. 4, 8, 12, __, 20
Pattern Detective
Be a pattern detective! Look at each sequence and figure out the rule. Fill in the missing numbers.
1. 6, 12, __, 24, 30
2. 10, __, 30, 40, 50
3. 2, 5, __, 11, 14
Activity 1: 6 ; 20 ; 7 ; 30 ; 9
Activity 2: 4 ; 10 ; 6 ; 8 ; 14 ; 18
Activity 3: 12 ; 10 ; 35
Activity 4: 20 ; 10 ; 25 ; 8
Activity 5: 15 ; 12 ; 20 ; 35 ; 32
Activity 6: 16 ; 48 ; 80
Activity 7: 25 ; 27 ; 16
Activity 8: 18 ; 20 ; 8
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