Fetching details from the dictionary...

to think (about, of); to think over; to ponder; to contemplate; to reflect (on); to meditate (on)
to consider; to bear in mind; to allow for; to take into consideration
to think (that); to believe; to hold (a view); to judge; to conclude; to suspect
to intend (to do); to think of (doing); to plan
to predict; to anticipate; to expect; to imagine
to come up with; to think up; to contrive; to devise
to consider (as); to regard (as); to look on (as); to take; to view
物事を多角的に勘える必要がある。
Look at things from multiple angles.
みんなで勘えれば良い案が出る。
Good ideas come out when everyone thinks together.
彼は原因を冷静に勘えた。
He thought about the cause calmly.