(6.5)÷(-3又1/4)-4的2次方÷[(-2的3次方-2的2次方]-1÷(-1又1/3)
3个回答
展开全部
(6.5)÷(-3又1/4)-4的2次方÷[(-2的3次方-2的2次方]-1÷(-1又1/3)
=-6.5÷13/4-16÷【-8-4+3/4】
=2-16÷(-45/4)
=2+64/45
=3又19/45
=-6.5÷13/4-16÷【-8-4+3/4】
=2-16÷(-45/4)
=2+64/45
=3又19/45
追问
(-6.5)÷(-3又1/4)-4的2次方÷[(-2的3次方-2的2次方]-1÷(-1又1/3)我刚刚发错了~~
追答
(-6.5)÷(-3又1/4)-4的2次方÷[(-2的3次方-2的2次方]-1÷(-1又1/3)
=6.5÷13/4-16÷【-8-4】-3/4
=2-16÷(-12)-3/4
=2+4/3-3/4
=2又7/16
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