Samurai Sums by Numeracy Ninjas

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Pair Power (Essentials)

A classroom-friendly matching pairs game for all 72 Numeracy Ninjas Essentials skills. Play with 2 to 4 human or AI players, flip numbered cards, and build recall through memory and calculation.

Matching pairsMental strategiesKey skillsTimes tables

Matching pairs fluency

Pair Power (Essentials)

Flip numbered cards, match each ninja-skill question to its answer, and claim the most pairs.

Local record00 draws

Players

Players

RedHuman player

Blue

Cards

Cards per gameSound effects

Ninja Skills

0 selected

Mental Strategies

These are mental calculations.

1. Number bonds to 52. Number bonds to 103. Number bonds to 204. Number bonds to 1005. Doubling a single digit number6. Doubling a two digit number7. Halving a single digit number8. Halving a two digit number9. Adding 10 to a number10. Subtracting 10 from a number11. Adding multiples of 10 to a number12. Subtracting multiples of 10 from a number13. How many to a multiple of 10?14. Add near doubles and compensate15. Partitioning single digit numbers16. Partitioning two digit numbers17. Add using number bonds to bridge a multiple of 10 and compensate18. Subtract using number bonds to bridge a multiple of 10 and compensate19. Count from the smallest number to the largest in a subtraction20. Reorder an addition21. Understand multiplication as repeated addition22. Understand division as the inverse of multiplication23. Equivalent calculations to make an addition easier24. 12 hour clock25. 24 hour clock26. How many minutes to/ past a time?27. Ordering integers by size28. Bridging zero29. Identify the missing number in a sequence30. Divisibility tests- easy

Key Skills

You may like to use pen and paper as some of these questions will require written calculation methods to be used.

31. Multiply whole numbers32. Divide whole numbers33. Add whole numbers34. Subtract whole numbers35. Order of operations- easy36. Order of operations- harder37. Multiply decimal numbers38. Divide decimal numbers39. Place value40. Convert between fractions, decimals and percentages41. Multiply by 10, 100 and 100042. Divide by 10, 100 and 100043. Add decimal numbers44. Subtract decimal numbers45. Multiply negative numbers46. Divide negative numbers47. Simplify fractions48. Round to decimal places49. Substitution50. Simple directed number51. Add a negative number52. Subtract a negative number53. Fraction of an amount54. Round to significant figures55. Factors56. Multiples57. Coordinates58. Square numbers and square roots59. Cube numbers and cube roots60. Equivalent fractions

Timestables

These are mental calculations.

61. 1 timestable and corresponding divisions62. 2 timestable and corresponding divisions63. 3 timestable and corresponding divisions64. 4 timestable and corresponding divisions65. 5 timestable and corresponding divisions66. 6 timestable and corresponding divisions67. 7 timestable and corresponding divisions68. 8 timestable and corresponding divisions69. 9 timestable and corresponding divisions70. 10 timestable and corresponding divisions71. 11 timestable and corresponding divisions72. 12 timestable and corresponding divisions

Samurai Sums is a free maths-games project by Numeracy Ninjas, built for quick, purposeful numeracy practice at home or in school.

Samurai Sums

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