8.计算:-|||-(1) times (-5)-(-3)div dfrac (3)(128)-|||-(2) -7times (-3)times (-0.5)
计算:(1)(-0.02)times (-20)times (-5)times 4.5;(2)(-6.5)times (-2)div (-dfrac(1)(3)
(2016春• 无锡校级月考)计算 (1)((-a))^7div ((-a))^4times ((-a))^3(2)((-a))^7div ((-a))^4ti
+5000times 3.25% times 2=-|||-div 25% =-|||--500times 20% =-|||-+3500times 2.25%
脱式计算。-|||-① times (632-248)div 8] -|||-② div [ 212-(246-41)] -|||-⑦ times [ (478
脱式计算-|||-.881div 0.43-0.24times 3.5=-|||--(3.4+1.25times 2.4)=-|||-(31.8+3.2time
填空-|||-dfrac (1)(3)times 3div dfrac (1)(3)times 3= __
计算下面各题。-|||-div dfrac (11)(8)=-|||-dfrac (2)(5)times dfrac (1)(2)=-|||-dfrac (3)
2.脱式计算。-|||-times dfrac (97)(99)-|||-dfrac (10)(21)times dfrac (7)(20)div dfrac
1.计算:-|||-(1) times ((dfrac {1)(2)-dfrac (1)(3))}^2;-|||-(2) .7div (-dfrac (8)(1