Tuition Singapore Secondary Math Tuition – Number System

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Tuition Singapore Secondary Math Tuition – Number System

1. Real numbers consists of both rational and irrational numbers.

2. Irrational numbers are numbers that cannot be expressed as exact fractions.
Example: rt2, rt3, pi………

3. Rational numbers are numbers that can be expressed in the form a/b, where a and b are integers
and b cannot = 0. Rational numbers include all integers and fractions.
Examples of rational numbers are —1, — 1 /3, 0,  1, 2, 2 1/3 ……..

4. The set of integers consists of …, —3, —2, —1, 0, 1, 2, …

5. The set of whole numbers consists of 0, 1, 2, 3, …

6. The set of natural numbers (or positive integers) consists of 1, 2, 3, …

7. The set of negative integers consists of .., —3, —2 and —1.

Please contact Mr Ong @ 9863 9633 or Angie @ 96790479 if you need help in Secondary Math Tuition