Explore outer space and collect different objects to earn space badges as you warp between galaxies with every correct answer.

Use this game to reinforce the skill of adding ten when mentally adding simple sums to 20. Students will practise recognising number patterns and apply their knowledge of base-10 structure to quickly and confidently add 10 to a given number. With each correct answer, they collect a space object and earn a badge as they journey through the galaxy.

Who will collect the most badges and become a space explorer pro?

Key Learning Outcomes:

• ✅ Add 10 to numbers mentally within 20
• ✅ Recognise number patterns related to place value
• ✅ Strengthen mental maths fluency and confidence
• ✅ Build number sense using visual and interactive reinforcement
• ✅ Engage in meaningful practise through gameplay

How to Play:

1. Students are presented with a simple equation requiring them to add 10 to a given number.
2. They must select the correct answer.
3. Each correct answer allows them to collect a space object and earn a badge.
4. The game continues through a series of addition questions involving adding 10.
5. At the end, students are shown all the space badges they earned throughout their journey.

Ideas for Classroom Use:

• 💡 Use during mental maths warm-ups or numeracy blocks to reinforce adding 10 strategies
• 💡 Great for Foundation to Year 1 students learning number patterns and developing fluency
• 💡 Pair with hands-on activities using ten frames or MAB blocks to strengthen understanding of place value
• 💡 Replay to improve speed, accuracy and number confidence

Top Teacher Tips:

• 💛 Let students personalise their experience by choosing from six characters before the game begins
• 💛 Select the number of players or teams at the start of the game to suit individual, paired, or group play
• 💛 Send the QR code home for students to play as a homework or fluency-building task

Let’s Explore – Mental Maths: Adding 10 helps students build number confidence and fluency while exploring the stars in an exciting space adventure!