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15 January, 13:16

What is 400 + 20 + 9 in standard form?

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  1. 15 January, 13:26
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    429. If I am correct standard form means to reduce or simplify or even round. So the standard form of it is 430
  2. 15 January, 13:39
    0
    400 + 20 + 9 IS standard form

    your question is a bit confusing as standard form/expanded form would be like

    7232

    7000 + 200 + 30 + 2

    it is not used to calculate problems
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