Mathematics

4th

grade

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CÁLCULO MENTAL

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20 questions

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  • 1. Multiple Choice
    1 minute
    1 pt

    90 x 90

    810

    8100

    1800

    1,8

  • 2. Multiple Choice
    30 seconds
    1 pt
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    El resultado de multiplicar 8 x 8 es

    74

    64

    72

  • 3. Multiple Choice
    30 seconds
    1 pt
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    El número anterior de 10.000 es

    9.000

    999

    9.999

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