The place value of 1 is 1 ones 1
The place value of 2 is 2 tens 20
The place value of 3 is 3 hundreds 300
The place value of 4 is 4 thousands 4000
Hence the number can be read as four thousand, three hundred and twenty one.
The idea of place value can also be explained to the child orally, emphasizing the
difference between the face value and the place value of a particular digit.
Note : Abacus can be used to teach the concept of place value of numbers.
- Expanded form
The form of writing a number broken into different additive values using the
place values is called as expanded form. For instance, the expanded form of the
number 6789 is,
6789 = 6000 + 700 + 80 + 9
= (6 ×^ 1000) + (7 ×^ 100) + (8 ×^ 10) + (9 ×^ 1)
Detailed explanation of the idea supported by relevant text material in Braille may be
provided to enable the child to understand the concept of expanded form of a number.
- Multiple
The term ‘multiple’ denotes a number that may be divided by another, a certain
number of times without leaving a remainder.
To enable the child to understand the concept, provide him with a heap of beads and
ask him/her to study the multiples of 2. That is, first take two beads and then add in
2’s consecutively, say up to 50. Once the child is clear with the multiples of 2, he/she
can be given another number so as to find its multiples on his/her own. Child should
be told that the multiplication table is based on the concept of multiple values.
