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1st Grade Counting Numbers 1-20 Worksheets and Activities

Skip counting by 2s (odd numbers) - Panda | Math Worksheet

Skip counting by 2s (odd numbers) - Panda

TopicCounting numbers

Skip counting by 2s (odd numbers) - Panda

This worksheet helps children practice skip counting by 2s using odd numbers within the range of 0–20. It supports number pattern recognition and builds a strong foundation for addition, multiplication, and overall numeracy. Worksheet instructions: Fill in the missing numbers.

Skip counting by 2s (even numbers) - Tree | Math Worksheet

Skip counting by 2s (even numbers) - Tree

TopicCounting numbers

Skip counting by 2s (even numbers) - Tree

This worksheet helps children practice skip counting by 2s using even numbers within the range of 0–20. It supports number pattern recognition and builds a strong foundation for addition, multiplication, and overall numeracy. Worksheet instructions: Fill in the missing numbers.

Skip counting by 2s (with number line) - Truck | Math Worksheet

Skip counting by 2s (with number line) - Truck

TopicCounting numbers

Skip counting by 2s (with number line) - Truck

This worksheet helps children practice skip counting by 2s using even numbers within the range of 0–20, with the help of a number line. It supports number pattern recognition and builds a strong foundation for addition, multiplication, and overall numeracy. Worksheet instructions: Fill in the missing numbers.

Counting backwards (1-20) - Frog | Math Worksheet

Counting backwards (1-20) - Frog

TopicCounting numbers

Counting backwards (1-20) - Frog

This worksheet helps students build number fluency by counting backwards from 20. It supports early subtraction skills and reinforces number order and sequencing. Worksheet instructions: Count backwards by 1 from 10 to 1, and fill in the missing numbers in the empty boxes below.

What comes before & after (1-20) - Taxi | Math Worksheet

What comes before & after (1-20) - Taxi

TopicCounting numbers

What comes before & after (1-20) - Taxi

This worksheet helps students practice number sequencing by identifying what numbers come before and after a given number between 1 and 20. A great resource for building counting skills and number sense. Worksheet instructions: Fill in the missing numbers by writing the numbers that come before and after.

What comes before (1-20) - Van | Math Worksheet

What comes before (1-20) - Van

TopicCounting numbers

What comes before (1-20) - Van

This worksheet helps students practice number sequencing by identifying what number comes before a given number between 1 and 20. A great resource for building counting skills and number sense. Worksheet instructions: Fill in the missing numbers by writing the number that comes before.

What comes after (1-20) - Bag | Math Worksheet

What comes after (1-20) - Bag

TopicCounting numbers

What comes after (1-20) - Bag

This worksheet helps students practice number sequencing by identifying what number comes after a given number between 1 and 20. A great resource for building counting skills and number sense. Worksheet instructions: Fill in the missing numbers by writing the number that comes next.

What comes before or after (1-20) - Banana Split | Math Worksheet

What comes before or after (1-20) - Banana Split

What comes before or after (1-20) - Banana Split

This counting worksheet helps students strengthen their number sequencing skills by filling in the missing number that comes before or after. This worksheet covers number ranges from 1-20, helping build confidence in number order and recognition. Worksheet instructions: Write the number that comes before or after each number in the spaces provided.

What comes before or after (1-20) - Firefighter | Math Worksheet

What comes before or after (1-20) - Firefighter

What comes before or after (1-20) - Firefighter

Students strengthen their number sequencing skills by filling in the missing number that comes before or after. This worksheet covers number ranges from 1-20, helping build confidence in number order and recognition. Worksheet instructions: Write the number that comes before or after each number in the spaces provided.

Counting with ten frames (1-20) - Athlete | Math Worksheet

Counting with ten frames (1-20) - Athlete

TopicTen frames

Counting with ten frames (1-20) - Athlete

Worksheet instructions: Count the counters in each frame. Write the correct number of counters above the line.

Counting with ten frames (1-20) - Sheep | Math Worksheet

Counting with ten frames (1-20) - Sheep

TopicTen frames

Counting with ten frames (1-20) - Sheep

Worksheet instructions: Count the counters in each frame. Write the correct number of counters above the line.

Count objects and subtract within 20 - Star | Math Worksheet

Count objects and subtract within 20 - Star

TopicSubtraction

Count objects and subtract within 20 - Star

Worksheet instructions: Count the number of stars. Cross out the number of stars you are taking away (subtracting). Count how many are left and write the answer.