Use this fun Number Hide & Seek POWERPOINT game to help your students practise identifying missing numbers on a hundreds chart. This ‘search and find’ activity builds fluency, pattern recognition and confidence with number sequences—an essential foundation for number understanding in the early years.

In this interactive resource, students examine the hundreds board to find 10 missing numbers, hidden behind coloured magnifying glasses. The game board is editable, and the magnifying glass icons are moveable, allowing you to choose which numbers to hide and adjust difficulty based on student needs. It’s a flexible and engaging way to develop number sequencing skills through active play.

This activity can be used with the whole class, in small groups, or independently. Students can record their answers on whiteboards, in their books, or on the included recording sheet. For an extra challenge, students can create their own version of the game board to swap and solve with a classmate!

Key Learning Outcomes:

• ✅ Recognise and recall number sequences to 100
• ✅ Identify missing numbers in a structured number grid
• ✅ Strengthen mental computation and visual pattern recognition
• ✅ Develop flexible thinking and number fluency
• ✅ Engage with numbers in an interactive, game-based format

What’s Included:

• Editable PowerPoint slide with hundreds chart
• 10 coloured magnifying glass icons to cover missing numbers
• Printable recording sheet for students to write missing numbers

Materials Needed:

• Device with PowerPoint and classroom display
• Whiteboards, books or printed recording sheets
• Optional: student-created grids for peer challenges

How to Use:

1. Open the PowerPoint in slideshow or edit mode and move the magnifying glasses to cover any 10 numbers on the hundreds chart.
2. Display the board to the class and ask students to identify the hidden numbers.
3. Students record their answers on a whiteboard, in their books, or using the recording sheet.
4. Reveal the missing numbers and check student responses as a class.
5. Repeat with different numbers or invite students to design a challenge for a peer.

Ideas for Classroom Use:

• 💡 Use during maths warm-ups or transitions to activate number thinking
• 💡 Assign in small groups for targeted support or extension
• 💡 Pair with a ‘how many more?’ challenge using nearby numbers
• 💡 Provide laminated boards and Velcro icons for hands-on play
• 💡 Use as an early finisher task with students designing and swapping boards

Top Teacher Tips:

• 💛 Vary the level of difficulty by hiding numbers in rows, columns or diagonals
• 💛 Use a classroom display chart to build familiarity before game time
• 💛 Invite students to justify their answers using skip-counting or place value
• 💛 Encourage students to identify number patterns that help them find answers
• 💛 Save different versions of the slide for use across multiple weeks or rotations

Number Hide & Seek POWERPOINT is a flexible, interactive way to build number sequence confidence through a hands-on and visually engaging format. It’s a perfect tool to reinforce number patterns and strengthen whole-number understanding in a playful and purposeful way.

You might also be interested in the printable task card version of this activity.