Expanded form of a Number

In expanded form of a number, the number is shown according to the place values of its digits.

This is shown here:

In 2385, the place values of the digits are given below:

Hence, 2385 = 2000 + 300 + 80 + 5

Thus, 2000 + 300 + 80 + 5 is the expanded form of 2385.

For example:

1. Find the expanded form of 453169.

Solution:

Place values of digits 453169

So, 453169 = 400000 + 50000 + 3000 + 100 + 60 + 9

2. Write the number in figures and then in words for the following expanded form:

(i) 80000 + 8000 + 500 + 50 + 7

Solution:

80000 + 8000 + 500 + 50 + 7

= 88557 (in figures)

Eighty eight thousand five hundred fifty seven (in words)

(ii) 100000 + 30000 + 2000 + 10 + 6

Solution:

100000 + 30000 + 2000 + 10 + 6 = 132016 (in figures)

One hundred thirty two thousand sixteen (in words)

We can write the expanded form of numbers in different ways.

3. Write in expanded form:

(i) 28369

Write as:

(a) 20000 + 8000 + 300 + 60 + 9

(b) 2 × 10000 + 8 × 1000 + 3 × 100 + 6 × 10 + 9 × 1

(c) 2 ten thousands + 8 thousands + 3 hundreds + 6 tens + 9 ones

(ii) 419,247

Write as:

(a) 400000 + 10000 + 9000 + 200 + 40 + 7

(b) 4 × 100000 + 1 × 10000 + 9 × 1000 + 2 × 100 + 4 × 10 + 7 × 1

(c) 4 hundred thousands + 1 ten thousands + 9 thousands + 2 hundreds + 4 tens + 7 ones

Related Concept

● Formation of Numbers.

● Finding Out the Numbers

● Names of the Numbers.

● Numbers Showing on Spike Abacus.

● 1 Digit Number on Spike Abacus.

● 2 Digits Number on Spike Abacus.

● 3 Digits Number on Spike Abacus.

● 4 Digits Number on Spike Abacus.

● 5 Digits Number on Spike Abacus.

● Large Number.

● Place Value Chart.

● Place Value.

● Problems Related to Place Value.

● Expanded form of a Number.

● Standard Form.

● Comparison of Numbers.

● Example on Comparison of Numbers.

● Successor and Predecessor of a Whole Number.

● Arranging Numbers.

● Formation of Numbers with the Given Digits.

● Formation of Greatest and Smallest Numbers.

● Examples on the Formation of Greatest and the Smallest Number.

● Rounding off Numbers.

4th Grade Math Activities

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