Mathématiques

Question

a=4×9×0.25
b=8×31.4×0.125
c=2×4.35×100×0.5
a=4×9×0.25 b=8×31.4×0.125 c=2×4.35×100×0.5

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2 Réponse

  • a=4×9×0.25
    a = 9 x 4x0,25       or 4x0,25 = 1
    a = 9x1
    a = 9

    b=8×31.4×0.125
    b = 31,4x8x0,125    or 8x0,125 = 1
    b = 31,4x1
    b = 31,4

    c=2×4.35×100×0.5
    c = 4,35x100x2x0,5    or 2x0,5 = 1
    c = 4,35x100x1
    c =435

  • a = 4 × 9 × 0,25
    a = 4 x 0,25 x 9    
    a = 1 x 9
    a = 9

    b = 8 × 31,4 × 0,125
    b = 8 x 0,125 x 31,4
    b = 1 x 31,4
    b = 31,4

    c = 2 × 4,35 × 100 × 0,5
    c = 2 x 0,5 x 4,35 x 100
    c = 1 x 435
    c = 435

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