(10分)(1)计算:22+(-1)4+(-2)0-|-3|;(2)先化简,再求值:(4ab3-8a2b2)÷4ab+(2a+b)(2a-b),其中a=2,b=1.
(8分)计算:.
计算:.
(8分)计算
(1) (2)-1-〔1-(1-0.5×)〕×6(4) (5)(-+)×(-36) (6)
计算: (1)(2)