Numeracy Ninjas is a whole-school numeracy intervention designed to fill gaps in students’ basic mental calculation strategies and more

Joined July 2015
139 Photos and videos
This Week in Maths: hidden triangles in 3D geometry, Interwoven Maths tasks, Class Duels for retrieval, big mathematical ideas, and a short exam-season watch. numeracyninjas.org/this-week… #mathschat
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Added a free times tables lookup grid printable for our game Timestables Lightning Streaks to support learners still building confidence in their TTs. samuraisums.org/games/lightn…
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Excited to announce a new game in Samurai Sums: Gem Capture. It’s a free Mancala-style maths strategy game where learners sow gems, count landing bowls, capture totals, and plan their next move. Play Gem Capture: samuraisums.org/games/dojo-s… #MathsGames
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Numeracy Ninjas retweeted
samuraisums.org/games/pair-p… "Can we play again...?" Brand new game- Matching Pairs with ALL 72 Ninjas Essentials Skills! Tried with students this week and they went mad for it. Another completely free, no login, no ads, no paywall game from Samurai Sums by @NumeracyNinjas
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Numeracy Ninjas retweeted
samuraisums.org/games/cube-q… "Woah, that made me think really hard..." Brand new game- Cube Quest! Build a 3D cube model from projection clues! Another completely free, no login, no ads, no paywall game from Samurai Sums by @NumeracyNinjas
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Launching Cube Quest- can you build the 3d view from the 2d views using a minimal number of cubes? samuraisums.org/games/cube-q… Another free, no logins, no ads engaging game for your students from @NumeracyNinjas
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Lesson planning for the week ahead? Check out the BRAND NEW Samurai Sums by @NumeracyNinjas. samuraisums.org/ Samurai Sums is a public games library by Numeracy Ninjas. No accounts, no adverts, no paywall: just focused number practice that works.
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Can you or your students beat a top score of 18 300 on Times Tables Lightning Steaks? If so, post your proof in the comments! samuraisums.org/games/lightn…
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Can you escape the Grand Master maze? An epic challenge of spatial reasoning. samuraisums.org/games/a-mazi…
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New game: Matching Pairs Essentials. Learners match, recall, and revisit every one of the 72 skills from the Numeracy Ninjas Essentials programme. Play free: samuraisums.org/games/pair-p… #NumeracyNinjas #MathsGames #Numeracy #SamuraiSums
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A-Mazing Escape A-Mazing Escape is a quick 3D maze challenge for spatial reasoning, planning, and route efficiency. Can you beat the optimal path? Play free: samuraisums.org/games/a-mazi… #MathsGames #Numeracy #AMazingEscape
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Samurai Sums by Numeracy Ninjas brings together free browser maths games for fast, purposeful numeracy practice: times tables, factors, darts arithmetic, spatial reasoning, patterns, and target-number challenges. Play free: samuraisums.org/ #MathsGames #Numeracy
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Maths teachers, looking for some engaging mathematical starters to get your lessons off with a buzz? Check out Samurai Sums by Numeracy Ninjas: samuraisums.org/ No accounts, no adverts, no paywall: just focused number practice that works from phone to classroom screen.
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Numeracy Ninjas Plus Gold is live for 2026/27. The full pathway is now: Essentials -> Plus Bronze -> Plus Silver -> Plus Gold, with Samurai Sums free for quick browser practice. 10% off all orders placed by 31 July 2026: 📷numeracyninjas.org/trial-sub…
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A score tells pupils how today went. A target skill shows the next practice. That is the point of a 5-minute Skill Check: short task, self-marking, clear next step. Try Ninjas Essentials: 📷numeracyninjas.org/ninjas-es… #MathsTeachers #MathsFluency
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Numeracy Ninjas note: SATs, GCSEs and National Numeracy Day all point to the same thing. Confidence grows when pupils can see progress. After an assessment, ask: What is the next target skill?
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