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🔢 Number Rules

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I can use number properties, LCM and HCF.

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Number properties: order can change in + and × (commutative); a × (b + c) = a × b + a × c (distributive). LCM is the smallest common multiple; HCF the biggest common factor.

Example: LCM of 4 and 6

  1. 4, 8, 12…
  2. 6, 12…
  3. LCM = 12

Questions get harder as you go. The last ones ask you to type the answer.