Question

1.-3²-|（-5）³|×（-2/5）²-18÷|-（-3）²| 2.-4.0

Answer 1

1.原式= -9-(-125)×（4/25)-18÷9

= -9+12-2

= 1

2.原式=-48.42+90.42-36×（7/9-5/6+2.-4.035×12+7.535×12-36×（7/9-5/6+ 7/18)

你的括号扩到了哪?（7/9-5/6+2.-4.035×12+7.535×12-36×（7/9-5/6+ 7/18),你忘加右括号了!