Mathematics Class VI

Knowing Our Numbers
Whole Numbers
Playing With Numbers
Basic Geometrical Ideas
Fractions
Integers
Decimals
Data Handling
Mensuration
Algebra
Ratio and Proportion
Practical Geometry
Symmetry

The Number Line

Number line

A number line is an image of a graduated straight and horizontal line wherein numbers are composed. A number composed on the left-hand side of the number line is lesser and number composed on the right-hand side of the number line is greater.

Operations on a number line

⇒ Addition – Example, -First, locate  on the number line. Then moving  places to the right will give .

⇒ Subtraction – Example, -First, locate  on the number line. Then moving  places to the left will give .

⇒ Multiplication- Example, -Start from  and skip  places to the right  times.

Division – Example, – Start from  and subtract  for a number of times till  is reached. The number of times  is subtracted gives the quotient.

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