36-(-24)-78-(-18)

问题描述:

36-(-24)-78-(-18)

36-(-24)-78-(-18)
=36+24-78+18
=60-78+18
=-18+18
=0

36-(-24)-78-(-18)
=36+24+18-78
=0

36-(-24)-78-(-18)
=36+24-78+18
=(36+24)-(78-18)
=60-60
=0