Horizontal Addition of a Chain of One-Digit Numbers

1. Addition

Welcome to the Horizontal Addition of a Chain of One-Digit Numbers worksheet – the inaugural step on your journey to number mastery! This quick and dynamic one-digit addition worksheet is designed to ignite your mental maths skills and set the stage for mathematical excellence.

In each problem, you'll encounter a sequence of single-digit addends awaiting your mental calculations. Your task is to swiftly sum these addends and confidently enter the final solution. To conquer this worksheet with finesse, you can employ strategic approaches that expedite the addition process.

As you engage with the problems, consider scanning the list of one-digit addends and discerning familiar patterns or groups that could streamline your calculations. Grouping numbers that sum to 10 or exhibit easy-to-remember pairs can significantly simplify the task. For more intricate additions, employ techniques such as the Split & Add method to break down complex computations into manageable steps.

Customization is key to your learning experience. Tailor the worksheet to your preferences by choosing the count of one-digit addends, ranging from 3 to 8, or opt for a random mix of these addends. Furthermore, you have the freedom to select the number of problems in the worksheet, with options of 8, 16, or 24.

As you tackle this introductory worksheet, you'll lay the foundation for mental agility and mathematical prowess. Get ready to witness your mental maths skills flourish like never before!

The Worksheet


This configurable worksheet presents 7 variants. Including the number of problems option, the total number of worksheet variants comes to 21.

Explore Other Horizontal Addition, Subtraction Worksheets


  • Horizontal Addition with the Chosen Addend | Online Interactive Worksheet

    Horizontal maths addition practice drill worksheet of the chosen 1 or 2-digit Addend. With 3 levels of difficulty, you can choose Addends up to 35.

  • Horizontal Addition of Two Numbers | Online Interactive Worksheet

    Direct mental addition practice drill with up to 3 digits of 2 addenda. Choose your required number of digit combination with the optional 1s or 0s exclusion

  • Horizontal Subtraction of a Chain of One-Digit Numbers | Online Interactive Worksheet

    One-digit number subtraction maths practice drill. This worksheet has a chain of 1-digit numbers in a horizontal fashion to be subtracted from the previous one.

  • Horizontal Subtraction with the Chosen Subtrahend | Online Interactive Worksheet

    Horizontal maths subtraction practice drill worksheet of the chosen 1 or 2-digit Subtrahend. With 3 levels of difficulty, you can choose Subtrahends up to 35.

  • Horizontal Subtraction of Two Numbers | Online Interactive Worksheet

    Direct mental subtraction maths practice drill with up to 3 digits of minuend and subtrahend. Choose your digit combination with the optional 1s or 0s exclusion