Number Sequences Worksheet by Teach Simple

About this resource

What's inside this resource

Eight numeric sequences — counting by tens, fives, and twos, both ascending and descending, such as 10, 20, 30, __, 50, 60 and 45, 40, __, 30, 25, 20, 15 — ask students to fill in the missing numbers in each pattern. The worksheet presents the sequences in a simple fill-in-the-blank layout with space to write in the missing values. A lettered answer list from A through H sits beneath the sequences, giving the complete run of numbers for each row so students or teachers can self-check. The mix of step sizes and directions gives practice with skip counting in both directions in a single sitting, making it suitable as morning work, homework, or a quick formative check.

In the classroom

Teaching tips & learning objectives

Learning objectives

Identify the step size (interval) of a given number sequence
Fill in missing numbers in ascending sequences counting by 2s, 5s, and 10s
Fill in missing numbers in descending sequences counting back by 5s and 10s

Teaching tips

Use as a quick warm-up or formative check since it covers multiple skip-counting intervals in one sitting.
Have students state the step size out loud before filling in each sequence to reinforce the reasoning, not just the answer.
Pair with a number line or hundreds chart for students who need a visual aid to find the missing values.

Skills covered

Skip counting by twos, fives, and tens — students complete ascending sequences such as 6, 8, __, __, 18, 20, 22.
Descending number patterns — students fill in gaps in reverse sequences such as 200, __, 180, 170, 160, __.
Pattern recognition — students infer a sequence's step size from the given numbers before filling in blanks.

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Curriculum

Standards, concepts & topics

Standards

2.NBT.A.2 — Count within 1000; skip-count by 5s, 10s, and 100s.

Core concepts

skip counting
number patterns
sequences

Topics

Math Homework Math Worksheet Skip Counting Number Sequences Number Patterns Missing Numbers Math Assessments

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Categories this resource belongs to

2nd Grade Math Worksheets Math Worksheets Popular Math Worksheets 2nd Grade Worksheets Elementary Worksheets Worksheets & Printables

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