"278+444等于几"...278+444等于几

　"42825+191604+286524等于几"...42825+191604+286524等于几

　"7983-4258等于几"...7983-4258等于几

　"8274-3774等于几"...8274-3774等于几

　"2384+16384等于几"...2384+16384等于几

　"467-288等于几"...467-288等于几

　"278+441等于几"...278+441等于几

　"4444-27等于几"...4444-27等于几

　"444+278+278等于多少"...444+278+278等于多少

　"4276-3582等于几"...4276-3582等于几