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72 125的简便计算脱式计算

72*125=8*125*7=1000*7=7000.

72*125 =(70+2)*125 =70*125+2*125 =8750+250 =9000

72X125=(8Ⅹ9)X125=8x125X9=1000X9

72*125 =8*9*125 =8*125*9 =1000*9 =9000

125*72=125*8*9=1000*9=9000

解:8X72X125等于( 72000 ) ∵已知需求出8X72X125等于多少 A *)* B = D ∴8 * 72 * 125 = (8 * 125)* 72 = 1000 * 72 = 72000 答:8X72X125等于72000

72x125=9x8x125=9x1000=9000 愿能帮到你.

72x125=(9x8)x125=9x(8x125)=9x1000=9000

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