初一有理数简便计算[-|98|+76+(-87)]×235+21×8÷2-6-5968÷21-8-11×8+61-2÷9-7÷9-564.6-(-3÷4+1.6-4-3÷4)22+(-4)+(-2)+4×3-3x+2y-5x-7y(0.5)-(-3又4/1)+2.75-(7又2/1)+2-3又5/3 -(-4又4/3)- (1又5/2 )+ (- 3又4/3)1÷2×(-4÷15) ÷2÷3(-1.8)+(

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