六年级举一反三配套练习(共2页).doc
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1、精选优质文档-倾情为你奉上定义新运算6-01.一、基础卷.1设p、q是两个数,规定:pq = 3p(pq)2,求7(24)。2如果1*5 = 111111111111111,2*4 = 2222222222,3*3 = 333333,那么4*3 = _;105*2 = _。3规定m*n = mmmmmmmmmm【(n1)个m】,那么6*6 = _。4x、y是自然数,规定x*y = 4x3y,如果5*a = 8,那么a是几? 5规定A3 = AAAAAA,已知2X = 2468,求x。6设ab = 5a3b,已知x(32)= 18,求x。二、提高卷.1设a*b = 4ab,求(5*4)*(10*
2、6)。2设x、y是两个数,规定x*y = x/yy/x,求18*31/3。3规定 = 234, = 345, = 456,如果1/1/ = 1/,那么 = _。4规定a*3 = a(a1)(a2),那么x*5 = 45,x = _。5设x、y、x、y是自然数,定义(x、y、x、y)= xyxy,计算(1,2,3,4),(3,4,1,2),(2,3,4,1),(4,1,2,3),(14,10,14,10)的值。6定义两种运算“”,“”,对于任意两个整数a、b,ab = ab1,ab = ab1,求: 4【(68)(35)】的值; 若x(x4)= 30,求x的值是多少? 参考答案:一、基础卷17(
3、24)= 7【32(24)2】= 73 = 37(73)2 = 1624*3 = 444444 = 492;105*2 = 105 = 36*6 = 666666666666666 = 7407045*a = 543a = 203a = 8,a = 452468 = 2222222222,x = 4632 = 5332 = 9,x9 = 5x39 = 5x27 = 18,x = 9二、提高卷15*4 = 454 = 16,10*6 = 4106 = 34,16*34 = 16434 = 30。218*31/3 = 18/33/181/3 = 61/61/3 = 5又1/23 =(1/1/)1/ =(1/1/) = (678)/(567)1= 8/51= 2又3/54x(x1)(x2)(x3)(x4)= 45,x = 75(1,2,3,4)= 1234 = 14(3,4,1,2)= 3412 = 14(2,3,4,1)= 2341 = 10(4,1,2,3)= 4123 = 10(14,10,14,10)= 14101410 = 2806 68 = 681 = 1335 = 351 = 7137 = 1371 = 19419 = 4191 = 75 x(4x1)= 30x4x11 = 305x2 = 30x = 6.4专心-专注-专业
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