Question

Which of the following is the expanded form of 3479?

• A. $3\times 1000+4\times 100+7\times 1+9$
• B. $3\times 1000+4\times 100+7\times 10+9\times 1$
• C. $3\times 10000+4\times 1000+7\times 10+9\times 0$
• D. $3\times 10000+4\times 100+7\times 0+9\times 1$

Answer 1

The correct option is B $3\times 1000+4\times 100+7\times 10+9\times 1$

$\text{The place value table for the given}\text{number is:}$
$$\begin{array}{cccc}\text{Thousands}& \text{Hundreds}& \text{Tens}& \text{Ones}\\ 3& 4& 7& 9\end{array}$$The expaned form of the given number can be written as:

$=(3\times 1000)+(4\times 100)+(7\times 10)+(9\times 1)=3,000+400+70+9$