Write the number in expanded form.
684
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684 in expanded form is
6x100+8x10+4x1
Yes -- or it could be stated:
600 + 80 + 4
To write a number in expanded form, you need to break it down into the sum of its place values. Here's how you can do it for the number 684:
684 = 600 + 80 + 4
In this case, the number 684 is composed of 6 hundreds, 8 tens, and 4 ones. By adding these place values together, you get the original number.