Respuesta :
This is how you write 309,099,990 in expanded form is 300,000,000+9,000,000,+90,000+9,000+900+90
The expanded form of 309,099,990 is 3 × 100000000 + 9 × 1000000 + 9×1000 + 9 × 100 + 9×10.
What is place value?
A place value tell us value of each digit in a number based on its position, as per the numeral system.
What is expanded form?
Expanded form is a way to write a number by adding the value of its digits.
According to the given question
We have a number 309,099,990.
place value of 3 in 309099990 is hundred millions.
place value of first 0 in 309099990 is ten million.
place value of first 9 in 309099990 is million.
place value of second 0 in 309099990 is hundred thousands.
place value of second 9 in 309099990 is ten thousands.
place value of third 9 in 309099990 is thousands.
place value of fourth 9 in 309099990 is hundred.
place value of fifth 9 in 309099990 is tens.
place value of third 0 in 309099990 is ones.
Therefore, the expanded form of 309,099,990 is given by
309,099,990 = 3 × 100000000 + 0 × 10000000 + 9 × 1000000 + 0 × 100000 + 9×1000 + 9 × 100 + 9 × 10 + 0 × 1
⇒ 309,099,990 = 3 × 100000000 + 9 × 1000000 + 9×1000 + 9 × 100 + 9×10
Hence, the expanded form of 309,099,990 is 3 × 100000000 + 9 × 1000000 + 9×1000 + 9 × 100 + 9×10.
Learn more about expanded form here:
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