根据有效数字运算规则计算下列各题。
（1）$327.0+0.18$
（2）$2.5\times 10^3-27$
（3）$3.71\div (1\times 10^3)$
（4）$(178.5+0.834)\times 3.00^2\pi$
（5）$\frac {0.427\times (72.6+4.38)}{223.7-219.3}$
计算: (1)((-1))^10times 2+((-2))^3div 4; (2)((-1))^10times 2+((-2))^3div 4; (3)((-
根据有效数字运算规则计算下列结果:(1) (2) (3) (4) (5)7.根据有效数字运算规则计算下列结果:(1)(2)(3)(4)(5)
1.用简便算法计算下面各题。(2)/(9) - (7)/(16) times (2)/(9)(2)/(5) times 4 times (3)/(4)(5)/(
计算：(1)(-0.02)times (-20)times (-5)times 4.5；(2)(-6.5)times (-2)div (-dfrac(1)(3)
[题目]-|||-计算:-|||-dfrac (1)(1times 2)+dfrac (2)(2times 4)+dfrac (3)(4times 7)+dfr
[题目]计算:-|||-(1) ((-1))^100times 5+((-2))^4div 4 ;-|||-(2) ((-3))^3-3times ((-dfr
[填空题] 根据有效数字运算规则计算下式：2.187×0.854+9.6×10-5-0.0326×0.00814=（）
8.计算:-|||-(1) times (-5)-(-3)div dfrac (3)(128)-|||-(2) -7times (-3)times (-0.5)
(2016春• 无锡校级月考)计算 (1)((-a))^7div ((-a))^4times ((-a))^3(2)((-a))^7div ((-a))^4ti
填空-|||-dfrac (1)(3)times 3div dfrac (1)(3)times 3= __