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6.岁数学十位数近似值

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15 questions

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  • 1. Multiple Choice
    2 minutes
    1 pt

    25的十位近似值是什么?

    30

    20

  • 2. Multiple Choice
    2 minutes
    1 pt

    31 的十位近似值是什么?

    20

    30

  • 3. Multiple Choice
    30 seconds
    1 pt

    43的十位近似值是什么?

    43

    40

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