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是9000-34x65+1500

9000-34x65+1500=9000-2210+1500=6790+1500=8290

900034x65+1500= 90002210+1500= 7000+20002000+1500-210=7000+1290=8290

额,你先算34乘65,再用9000减34乘65的积,接着加1500

9000-34*65+1500=9000-(35-1)*65+1500=9000-35*65+65+1500=8290

解:9000-34x56+ 1500 =(9000+1500)-(45-11)(45+11) =10500-45^2+11^2 =10500-2025+121 =8475+121 =8596

用简便方法运算9000-34*65+150=9000-2210+1500=6790+1500=8290

2000-90x=1500-65x两边同时减1500500-90x=-65x两边同时加65x500-25x=0移项500=25xx=20

20X-1500X+27000=020X-1500X=-2700020X-1500X=-根号27000-1480x=-根号27000x=根号27000除以1480人家也没有算 就麻烦你自己算了

2850+2900=5750(元)5750-3500=2250(元)1500*3%=45(元) (2250-1500)*10%=75(元)75+45=120(元) 答:他应缴税120元.

5、39270=2x3x5x7x11x17 =3x11x2x17x5x7 =33x34x35所以这三个数为33、34、35长方体表面积:2x(33x34+33x35+34x35)=69346、40=2x2x2x544=2x2x1145=3x3x563=3

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