"7983-4258等于几"...7983-4258等于几

　"3478+5796等于几"...3478+5796等于几

　"7328+286等于几"...7328+286等于几

　"9876+4532等于几"...9876+4532等于几

　"836-719等于几"...836-719等于几

　"786+432等于几"...786+432等于几

　"3421+6775等于几"...3421+6775等于几

　"3478+5796等于"...3478+5796等于

　"783-496等于几"...783-496等于几

　"2394+857等于几"...2394+857等于几