Get your students moving and thinking with our interactive Mathsercise Coding: Three-Digit Add Two-Digit Worksheets 3–4. This energising resource combines algorithm practise with physical activity and a secret code challenge. It’s the perfect way to build fluency in addition while keeping your students engaged and active — no equipment needed!

Students begin by solving a set of three-digit plus two-digit addition problems using vertical algorithm strategies. Each solution is then matched to a code key that reveals a mystery exercise — think star jumps, high knees or toe touches. Once students perform the movement, they level up the challenge by becoming the coder. They create their own set of calculations that encode a new exercise for a partner to solve, decode and perform.

This resource includes three differentiated worksheet versions to support a wide range of learning levels. The first version does not require regrouping, the second includes some regrouping, and the third requires regrouping in every problem. Use the versions flexibly for individualised instruction, group progression or in rotations. All movements can be completed in the classroom, outdoors or in undercover spaces, making this a versatile addition to your maths and PE integration toolkit.

Key Learning Outcomes:

• ✅ Solve three-digit plus two-digit addition problems using vertical algorithms
• ✅ Apply regrouping strategies confidently when required
• ✅ Practise encoding and decoding information using number-to-letter codes
• ✅ Engage in movement-based learning to boost focus and motivation
• ✅ Collaborate with peers through challenge creation and response

What’s Included:

• 3 differentiated worksheet versions:
  • - Version 1: no regrouping
  • - Version 2: some regrouping
  • - Version 3: all regrouping
• Code key for decoding secret exercises
• Space for students to create their own coded exercise challenge
• Flexible format for independent, partner or group use

Materials Needed:

• Printed worksheets (one per student)
• Pencils or pens
• Optional: clipboard for outdoor use

How to Use:

1. Distribute the worksheet version that matches your students' level.
2. Students solve the three-digit plus two-digit addition problems using the vertical algorithm.
3. They use the code key to reveal a mystery exercise, which they then perform.
4. In the second section, students create their own coded exercise challenge using new addition problems.
5. Students swap their sheet with a classmate to decode and complete the challenge.

Ideas for Classroom Use:

• 💡 Use during a maths warm-up or brain break session
• 💡 Incorporate into your maths rotations for a high-energy station
• 💡 Assign different versions to support differentiation and progression
• 💡 Take outside for a PE-integrated numeracy lesson
• 💡 Turn it into a classroom challenge where students earn points for solving and decoding correctly

Top Teacher Tips:

• 💛 Laminate code keys for long-term use and easy reference
• 💛 Pair students intentionally for peer checking and encouragement
• 💛 Reinforce neat alignment when solving vertical addition problems
• 💛 Celebrate creative exercise ideas students come up with in their challenge section

Mathsercise Coding: Three-Digit Add Two-Digit Worksheets 3–4 blends maths, movement and creativity in one flexible, curriculum-aligned package. With built-in differentiation and an active learning twist, it’s a fantastic way to engage students in meaningful, memorable practise.