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下面各题,怎样算简便就怎样算.389+327+211608-154-146587-98258+36×7224×(9+11)525÷(155-130)

题目详情
下面各题,怎样算简便就怎样算.
389+327+211        
608-154-146            
587-98 258+36×72         
24×(9+11) 525÷(155-130)
▼优质解答
答案和解析
(1)389+327+211
=389+211+327
=600+327
=927;

(2)608-154-146
=608-(154+146)
=608-300
=308;

(3)587-98
=587-100+2
=487+2
=489;

(4)258+36×72
=258+2592
=2850;

(5)24×(9+11)
=24×20
=480;

(6)525÷(155-130)
=525÷25
=21.