Add and Subtract within 20 - Fluency with Equations

After counting using visual, tactile, and various mental strategies to explain and practice addition and subtraction, there arrives the transition point where these fundamental operations must be understood and written out in equations that become the foundation for so much mathematics that follow.

These Sets of worksheets hopefully provide a more than sufficient set of differentiated resources for working with the equations of addition and subtraction up to 20 that covers the requirement of most curricula around the world, with the flexibility to provide almost unlimited practice.

The 10 Sets include
1: Add and Subtract within 10 - find the sum or difference
2: Add and Subtract within 10 - Challenge - find the missing number in the
equation
3: Add within 20 - find the sum
4: Subtract within 20 - find the difference
5: Add and Subtract within 20 - find the sum or difference
6: Add and Subtract within 20 - Challenge - find the missing number in the
equation
7: Add and Subtract within 20 - right or wrong quiz
8: Maze - Addition within 20
9: Maze - Subtraction within 20
10: Maze - Addition and Subtraction within 20

*Even though the focus is on adding and subtracting within 20 in some curricula students move on to larger numbers, so I have included the following *

Extension Sets
11: Add and Subtract within 30, 40 or 50 - find the sum or difference
12: Add and Subtract within 30, 40 or 50 - Challenge - find the missing number in the equation
13: Maze - Addition and Subtraction within 30, 40 or 50

How many worksheets are in each Set ?
Almost unlimited. At the click of a button all numbers are randomised, so the questions change every time which allows you to create new worksheets for extra practice or revision throughout the year or even give groups of pupils in your class different Sets of questions.

No-Prep Worksheets
Click, PRINT and Go !! Ideal to have ready at hand as an extra activity, or a resource for a replacement teacher that requires no instructions.

Answer are automatically generated each time.

Note
These resources work with the official Adobe Acrobat Reader on Windows or Mac computers.