數學問題,幫下手!急

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Use all the numbers 10,20,30,40 and 50 with the arithmetic operations(+,-,×,÷)and brackets, write down an expression with a result of 0

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  • 1 decade ago
    Favorite Answer

    Use all the numbers 10,20,30,40 and 50 with the arithmetic operations(+,-,×,÷)and brackets, write down an expression with a result of 0

    與算數運算 (+、 -、 ×、 ÷) 和托槽使用 10,20,30,40 和 50 的所有數位,寫下運算式結果為 0

    40+10-50×20

    =50-50×20

    =0×20

    0

    Source(s): me
  • 1 decade ago

    10 X 40 / 20 +30 - 50

    = 400 / 20 - 20

    =20 - 20

    = 0

  • 1 decade ago

    Ans: 20 x 40 ÷ 10 - (30 + 50)

    Source(s): myself
  • (40 - 30 - 10 ) x 20 x 50 = 0

    Because

    40-30-10=0

    0 × Y = 0

    (40 - 30 - 10 ) x 20 x 50=0

    2009-08-19 20:09:34 補充:

    你明唔明....

    任何數乘以0都係等於0

    所以( 40 - 30 - 10 ) x 20 x 50 = 0

    ( 50 - 30 - 20 ) x40 x 10 = 0

    為左令你明 我設Y係未知數 0 X Y(任何未知數) = 0

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