Skill: Write whole numbers in expanded form

To write a whole number in expanded form, break it apart by place value. Write the value of each digit, then add the values together.

Example: Write $(63{,}042)$ in expanded form.

1. Identify the value of each digit:

   • $6$ is in the ten-thousands place: $(60{,}000)$
   • $3$ is in the thousands place: $(3{,}000)$
   • $0$ is in the hundreds place: $0$
   • $4$ is in the tens place: $(40)$
   • $2$ is in the ones place: $2$

2. Add the place values:

$$63{,}042=60{,}000+3{,}000+0+40+2$$

Since adding $0$ does not change the number, the expanded form is usually written as:

$$\boxed{63{,}042=60{,}000+3{,}000+40+2}$$

The $0$ is a placeholder showing that there are no hundreds.