Create a custom missing-number-sequences worksheet in seconds — choose how to count, then press New version for a brand-new set of sequences.
Missing number sequences, built to your class
Choose a step, a direction, and how big the numbers should be, and print a worksheet of fill-in-the-blank number sequences with a matching answer key.
K–6
Grade range
6
Count-by steps
1 or 2
Missing numbers
Every sheet
Answer key
Build your worksheet
Set your options below and press Generate. Every worksheet comes with its own answer key.
Loading worksheet generator…
See what this generator prints
A real worksheet from this generator, shown with the answer key it prints alongside. Press New version and the problems change.
How it works
Three steps from blank page to printed worksheet.
Choose how to count
Pick a step — by 1s, 2s, 3s, 5s, 10s, or 100s — a direction (forward, backward, or both), and how big the numbers should be.
Generate
Press Generate for a randomized worksheet built to your settings, with a matching answer key on its own page.
Print or make another
Print the worksheet and key together, or press New version for a completely fresh set of sequences.
Grade level and skills
Best for Kindergarten through Grade 6. Start with short, forward-only sequences by 1s and 2s, then add backward counting, bigger steps, and a second missing number as students are ready.
- Skip counting
- Number patterns
- Counting forward and backward
- Counting by 10s and 100s
- Number sense
- Negative numbers (optional)
Classroom ideas
Ways teachers put a missing-number-sequences generator to work.
One skill at a time
Build up in order
Start with forward counting by 1s, then add backward sequences, bigger steps, and a second missing number as students are ready.
Differentiation
Same step, two number ranges
Print an easy version (up to 20) and a harder version (up to 10,000) of the same step so every group gets the right challenge.
Morning work
A fresh sheet every day
Generate a new set of sequences for morning work or homework — never the same numbers twice, so students practice the pattern instead of memorizing the page.
Skip-counting drills
The number sense under multiplication
Counting by 2s, 5s, and 10s is the foundation multiplication facts are built on — practice it directly, then move on to Multiplication & Division.
Frequently asked questions
Does it include an answer key?
Yes. Every worksheet comes with a matching answer key on its own page, with the same item numbers as the student sheet.
How does the generator make sure every sequence is solvable?
Every sequence always leaves two numbers next to each other visible, so the step is never a guess — it can always be found by looking at two neighboring numbers.
Can sequences count backward, or past zero?
Yes. Choose Backward for a descending sequence, or Mixed for both directions on one sheet. Turn on Allow negative numbers to let a backward sequence continue past zero, like 5, 0, -5.
How many numbers can be missing?
One or two per sequence, your choice. With two missing numbers, they are never placed so close together that the pattern becomes a guess.
What step sizes are available?
Count by 1s, 2s, 3s, 5s, 10s, or 100s — the standard skip-counting skills from Kindergarten through Grade 6.
Is this a Full Membership feature?
Yes — generating and printing worksheets is a Full Membership feature. Full Members can create unlimited versions of this and every other InstructorWeb® generator.
Related resources
More number practice from InstructorWeb®.
Generator
Comparing Numbers Worksheet Generator
Compare with >, <, and =, or put a set of numbers in order — the number sense right before number patterns.
Generator
Place Value Worksheet Generator
Digit value, place names, expanded form, word form, and standard form — the foundation every number pattern depends on.
Generate unlimited worksheets
Full Membership unlocks every InstructorWeb® worksheet generator, plus the complete library of printable worksheets and answer keys.