(-5)*(+7 1/3)+(+7)*(-7 1/3)-(+12)*7 1/3 简便方法计算

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(-5)*(+71/3)+(+7)*(-71/3)-(+12)*71/3简便方法计算(-5)*(+71/3)+(+7)*(-71/3)-(+12)*71/3简便方法计算(-5)*(+71/3)+(+7

(-5)*(+7 1/3)+(+7)*(-7 1/3)-(+12)*7 1/3 简便方法计算
(-5)*(+7 1/3)+(+7)*(-7 1/3)-(+12)*7 1/3 简便方法计算

(-5)*(+7 1/3)+(+7)*(-7 1/3)-(+12)*7 1/3 简便方法计算
(-5)*(+7 1/3)+(+7)*(-7 1/3)-(+12)*7 1/3
(-5-7)*(+7 1/3)-(+12)*7 1/3
(-12)*(+7 1/3)-(+12)*7 1/3
(-12-12)*7 1/3
-8*7=-56

(-5)*(+7 1/3)+(+7)*(-7 1/3)-(+12)*7 1/3 简便方法计算 找规律1,2,3,5,8,()()7,8,6,7,5,()() (4/5+1/4)÷7/3+7/10 两题算24点.1、(7、7、3、3)2、(5、5、5、1) (-5)*(+7 1/3)+7*(-7 1/3)-(+12)*(-7 1/3)=多少?(要用简便方法) -0.25/(-3/7)x(3/7)x(-1-1/5) 计算 (1)(1-105×(3/1-7/3-7/5-5/2)怎么算的 式子 105×(3/1-7/3-7/5-5/2) (7+4√3)(7-4√3)-(3√5-1)² 简便运算 (1+1/3+1/5+1/7)*(1/3+1/5+1/7+1/9)-(1+1/3+1/5+1/7+1/7+1/9)*(1/3+1/5+1/7) 1/(1*3*5)+1/(3*5*7)+1/(5*7*9)+1/(7*9*11).+(25*27*29) 7(1)(2)(3) -9*(-11)-12*(-8) (1/3-5/7-2/5)*10536*(-19 17/18) -5*7 1/3 +12*(-7 1/3) 9宫格填1到9个数字帮帮忙(5)()()()(7)()(3)()()()(9)()(5)()()(4)()()()()(4)()()()(7)()()()(5)(1)()(3)(7)(2) 计算:(+1)+(-3)+(+5)+(-7)……+(+2009)+(-2011) 计算:(+1)+(-3)+(+5)+(-7)+…+(+97)+(-99) (1).6(x/3+x-1/2 ) (2).(7-3a)+(5a-6) (3).(x-3)-(5x+7) 1、().()5* 2()--------------()3()()1()--------------2.()()52、()()()* 8.9---------------()()()()()()()---------------()()()()3、 ().7()()() (5/12-7/9-2/3)/(-1/36)