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Expanded form, step by step

Writing 105 as 100 + 5 says out loud what place value means.

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The question

105 in expanded form

number:105
1 in the hundreds:100
5 in the ones:5
1 in the hundreds:100
5 in the ones:5
100 + 5
  1. Expanded form is the number taken apart into what each digit is WORTH — so every piece is a digit times its column, never the digit on its own.
  2. Take each digit in turn: the 1 is 100, the 5 is 5.
  3. Add those together and you are back to 105: 100 + 5.

How it works.

  1. 01

    Expanded form is the number taken apart into what each digit is WORTH — so every piece is a digit times its column, never the digit on its own.

  2. 02

    Take each digit in turn: the 1 is 100, the 5 is 5.

  3. 03

    Add those together and you are back to 105: 100 + 5.

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