计算下面各题,怎样简便就怎样计算.
672-36+64 1034+78+320+102 25+75-25+75
145+263+55-198 127+133+184+240 487-187-139-61
300-123-75-77
人气：497 ℃ 时间：2020-05-14 10:19:12
解答
01-1)
=0.85*100
=85
3.6/4-0.12*5
=0.9-0.6
=0.3
(3.95-3.68)/9
=0.27/9
=0.03
4.8*5-6.6
=4.8*10/2-6.6
=48/2-6.6
=24-6.6
=17.4
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