Natural Numbers and Whole Numbers — Formula Sheet
ICSE · Class 6 · Mathematics
8 formulas from Natural Numbers and Whole Numbers (ICSE Class 6 Mathematics) on one page, grouped by topic. Part of the ICSE Class 6 Mathematics syllabus.
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Formulas and Key Relations
Properties of Whole Numbers
a + b = b + a
(a + b) + c = a + (b + c)
a × (b + c) = a×b + a×c
Number Line and Patterns
Sum of first n natural numbers = n(n+1)/2
Sum of first n odd numbers = n²
Sum of first n even numbers = n(n+1)
Successor = Number + 1
Predecessor = Number - 1
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