1st Grade Math - Addition and Subtraction Worksheets
Addition and Subtraction – 1st Grade Math Worksheets and Online Practice
This page brings together first-grade worksheets and online exercises for practising addition and subtraction within 20. Children can develop their calculation skills through basic sums, subtraction problems, missing-number exercises and activities involving tens and ones.
Choose a topic below to find activities for your child’s current learning goals, whether you are practising together at home or using the worksheets in the classroom.
Addition Worksheets up to 20
Addition helps children understand how quantities combine and develop confidence with basic calculations. These worksheets offer practice with adding two or three numbers, finding missing numbers, completing number patterns and working with tens and ones.
Printable Addition Worksheets (PDF)
The printable PDF worksheets provide structured addition practice for home or school. Children can work through the exercises at their own pace, revisiting familiar skills or trying different types of calculations.
Generate New Addition Worksheets with Answers
The online worksheet generators create new addition exercises for repeated practice. They cover different types of calculations, from basic sums to missing-number problems, input/output tables and exercises involving tens and ones. Each new worksheet provides different numbers with answers, giving children more opportunities to practise and build confidence.
Subtraction Worksheets up to 20
Subtraction helps children understand differences, take away quantities and work out how numbers change. These worksheets provide practice with basic subtraction, missing-number problems, input/output tables and calculations involving tens and ones. Different exercise formats encourage children to explore number relationships and develop their calculation skills.
Printable Subtraction Worksheets (PDF)
The printable PDF worksheets provide additional practice with subtraction. They can be used for independent work, revision or extra exercises alongside classroom learning.
Generate New Subtraction Worksheets with Answers
The online worksheet generators create new subtraction exercises with answers for repeated practice. They include calculations within 10 and 20, missing-number problems, input/output tables and exercises involving whole tens and two-digit numbers.
