Fill in the Missing Numbers Worksheets | Counting by 1s to 204 | 100 V

Make counting fun with this collection of 100 printable number sequencing worksheets! Designed for Kindergarten and 1st Grade students, this Valentine’s Day-themed workbook helps children practice counting forward by ones and filling in missing numbers from 1 to 204.

Each page features adorable heart-themed designs and engaging number sequences that encourage students to recognize number patterns, develop number sense, and build confidence with counting. The coloring-friendly pages add a little extra fun to everyday math practice.

What’s Included

• 100 heart-themed practice pages

• Number sequencing from 1 to 204

• Fill-in-the-missing-number exercises

• Counting forward by ones

• Cute Valentine’s Day designs

• Coloring-friendly worksheets

• Ready-to-print practice pages

Skills Students Will Practice

• Counting forward by ones

• Number recognition

• Number sequencing

• Identifying missing numbers

• Recognizing number patterns

• Developing number sense

• Early math and problem-solving skills

Perfect For

• Kindergarten and 1st Grade students

• Valentine’s Day classroom activities

• Math centers and stations

• Morning work

• Early finishers

• Homework assignments

• Homeschool lessons

• Extra counting practice at home

Why Use These Worksheets?

Regular counting practice helps young learners become more familiar with number order and recognize patterns in number sequences. Filling in missing numbers encourages children to think carefully about what comes next while strengthening their early math skills.

With 100 printable pages and a fun Valentine’s Day theme, this workbook provides plenty of opportunities to practice counting throughout the school year.