1st Grade Missing Numbers Worksheets and Activities

This Place Value worksheet helps students practice adding whole tens and ones by finding the missing addend in each equation, reinforcing their understanding of place value and basic addition skills. Worksheet instructions: Find the missing numbers in each of the given problems.

This worksheet focuses on skip counting by 9s, starting from 9. Encourage students to observe how the last digit decreases by one with each step, and ask them why this happens. Worksheet instructions: Count by 9s from 9 to 450 and fill in the missing numbers.

Worksheet instructions: Count by 8s from 8 to 400, and fill in the missing numbers.

Worksheet instructions: Count by 7s from 7 to 350, and fill in the missing numbers.

Worksheet instructions: Count by 6s from 6 to 300, and fill in the missing numbers.

Worksheet instructions: Count by 5s from 5 to 250, and fill in the missing numbers.

Worksheet instructions: Count by 4s from 4 to 200, and fill in the missing numbers.

Worksheet instructions: Count by 3s from 3 to 150, and fill in the missing numbers.

Worksheet instructions: Count by 2s from 1 to 99, and fill in the missing numbers below.

Worksheet instructions: Count by 100s from 100 to 5,000, and fill in the missing numbers below.

Worksheet instructions: Count by 50s from 50 to 2,500, and fill in the missing numbers below.

Worksheet instructions: Count by 25s from 25 to 1,250, and fill in the missing numbers below.

Worksheet instructions: Count by 10s from 4 to 994, and fill in the missing numbers.

In this worksheet, the student needs to find the missing number in each problem. Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. Worksheet instructions: Find the missing number in each problem.

In this worksheet, students need to find the missing number in each 4-digit addition problem. Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. Worksheet instructions: Find the missing number in each problem.

In this worksheet, students need to find the missing number in each four-digit addition problem. Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. Worksheet instructions: Find the missing number in each problem.

Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. In this worksheet, the student needs to find the missing number in each equation. Worksheet instructions: Find the missing number in each problem.

Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. In this worksheet, students need to find the missing number in each equation. Worksheet instructions: Find the missing number in each problem.

In this worksheet, the student needs to find the missing number in each equation. Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. Worksheet instructions: Find the missing number in each problem.

Students need to find the missing number in each equation. Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. Worksheet instructions: Find the missing number in each problem.

In this worksheet, students need to find the missing number in each equation. Missing addend exercises reinforce the concept of addition and are a great tool for practicing addition facts. Worksheet instructions: Find the missing number in each problem.

Worksheet instructions: Find the missing number in each problem.

Worksheet instructions: Complete each fact family by writing 4 facts with the given numbers.

Worksheet instructions: Complete each fact family by writing 4 facts with the given numbers.

Worksheet instructions: Count by 20 from 20 to 1,000, and fill in the missing numbers.