Six ways of writing whole numbers

Number forms are the different ways of writing whole numbers. See below the six different ways of writing the same whole number. 

Number forms

The following table shows the number forms for a number much bigger than 324. Notice that in the figure above, we do not have a short word form for 324. However, we do have a short word form for the number 645927.

The short word form is used for numbers greater than one thousand.

Number Forms Example
Standard form 645,927
Word form or written form six hundred fourty-five thousand, nine hundred twenty-seven
Short word form 645 thousand, 927
Expanded form (6 × 100,000) + (4 × 10,000) + (5 × 1000) + (9 × 100) + (2 × 10) + (7 × 1)
Exponential form (6 × 105) + (4 × 104) + (5 × 103) + (9 × 102) + (2 × 101) + (7 ×100)
Scientific form 6.45927 × 105

More examples showing the six ways of writing whole numbers.

Example #1

Show the six different ways of writing 572,048

Solution

Standard form: 572048

Word form: Five hundred seventy-two thousand, forty-eight

Short word form: 572 thousand, 48

Expanded form: (5 × 100000) + (7 × 10000) + (2 × 1000) + (0 × 100) + (4 × 10) + (8 × 1)

Exponential form: (5 × 105) + (7 × 104) + (2 × 103) + (0 × 102) + (4 × 101) + (8 × 100)

 Scientific form: 5.72048 × 105

Example #2

Show the six different ways of writing 8,796,532,148

Solution

Standard form: 8,796,532,148

Word form: Eight billion, seven hundred ninety-six million, five hundred thirty-two thousand, one hundred forty-eight

Short word form: 8 billion, 796 million, 532 thousand, 148

Expanded form: (8 × 1000000000) + (7 × 100000000) + (9 × 10000000) + (6 × 1000000) + (5 × 100000) + (3 × 10000) + (2 × 1000) + (1 × 100) + (4 × 10) + (8 × 1) 

Exponential form: (8 × 109) + (7 × 108) + (9 × 107) + (6 × 106) + (5 × 105) + (3 × 104) + (2 × 103) + (1 × 102) + (4 × 101) + (8 × 100

Scientific form: 8.796532148 × 109

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