Distributive Law

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  • (0:01) The Distributive Law: States that multiplying a number by a sum is the same as multiplying it by each part separately, then adding the results. This also works for subtraction.
  • (0:52) Expanding and Factorising: The distributive law helps in both expanding expressions, e.g., 15 × (100 + 2) = (15 × 100) + (15 × 2), and factorising, e.g., 50 × 24 − 50 × 14 = 50 × (24 − 14).
  • (2:23) Distributive Law and Division: The distributive law generally doesn’t apply to division and often does not simplify the calculation.

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Distributive Law

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Q: $4 \times (25 + 6)$

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Q: $8 \times (50 + 2)$

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Q: $7 \times (80 - 3)$

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Q: $8 \times (70 - 5)$

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Q: $8 \times 51$

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Q: $12 \times 102$

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