计算:(1)(-8)-(-1) (2)45+(-30) (3)-1.5-(-11.5) (4)-1/4-(-1/2) (5)15-[1-(-20-4)]

题目

计算:

(1)(-8)-(-1)                                        (2)45+(-30)                          

(3)-1.5-(-11.5)                                    (4)-1/4-(-1/2)                            

(5)15-[1-(-20-4)]                                                                    (6)-40-28-(-19)+(-24)                        

(7)22.54+(-4.4)+(-12.54)+4.4       

(8) (2/3-1/2)-(1/3-5/6)                         

(9)2.4-(-3/5)+(-3.1)+4/5                                                               (10)(-6/13)+(-7/13)-(-2)

(11)3/4-(-11/6)+(-7/3)

(12)11+(-22)-3×(-11)

(13)(-0.1)÷1/2×(-100)

(14)(-3/4)×(-2/3 - 1/3) ×0

(15)(-2)3-32

(16)23÷[(-2)3-(-4)]

(17)(3/4-7/8)÷(-7/8)

(18)(-60)×(3/4+5/6)


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