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Divisibility Rules (Quick Checks)

Topic: Numbers

  • Divisible by 2: Last digit even.

  • Divisible by 3: Sum of digits divisible by 3.

  • Divisible by 5: Ends in 0 or 5.

  • Divisible by 10: Ends in 0.

  • Divisible by 11: Alternating sum/difference of digits divisible by 11.

Numbers

Basic Mathematics

 What are Numbers? Types of Numbers Number Line Place Value and Face Value Even and Odd Numbers Prime and Composite Numbers Factors and Multiples HCF and LCM Roman Numerals Properties of Numbers Number Patterns and Sequences Sign Rules (Positive and Negative Numbers) Divisibility Rules (Quick Checks) Scientific Notation Surds Summary Table