解:(1)(+7)+(﹣8)﹣(+3)﹣(﹣4) =7﹣8﹣3+4 =11﹣11 =0; (2)﹣1﹣2÷(﹣)×(﹣3) =﹣1﹣×(﹣)×(﹣3) =﹣1﹣4 =﹣6; (3)﹣36×(﹣﹣) =(﹣36)×+(﹣36)×(﹣)+(﹣36)×(﹣) =﹣4+6+2 =﹣4+8 =4; (4)﹣13﹣(1﹣0.5)××[2﹣(﹣3)2] =﹣1﹣××(2﹣9) =﹣1+ =; (5)(﹣0.25)×1.25×(﹣4)×(﹣8) =(﹣0.25)×(﹣4)×1.25×(﹣8)] =1×(﹣10) =﹣10; (6)(﹣1)10×2+(﹣2)3÷4 =1×2+(﹣8)÷4 =2﹣2 =0. |