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Operations and Algebraic Logic · Autumn Term

Mental Math Strategies for Multiplication and Division

Practice mental multiplication and division using strategies like doubling and halving, factorisation, and estimation for larger numbers and decimals.

Key Questions

  1. Justify when using factorisation can simplify a mental multiplication problem.
  2. Analyze how estimation can help check the reasonableness of a mental calculation.
  3. Design a mental math challenge for peers using multiplication and division strategies.

NCCA Curriculum Specifications

NCCA: Junior Cycle - Strand 3: Number - N.1.1NCCA: Junior Cycle - Strand 3: Number - N.1.2
Class/Year: 1st Class
Subject: Foundations of Mathematical Thinking
Unit: Operations and Algebraic Logic
Period: Autumn Term

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