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下面各题怎样算简便就怎样算:563-495397+656391+568+709+321937-672-9371249-(673+249)7589+(3565+231)1236-185×6482-188+118.

题目详情
下面各题怎样算简便就怎样算:
563-495        

397+656            

391+568+709+32

1937-672-937      
1249-(673+249)7589+(3565+231)1236-185×6      482-188+118.
下面各题怎样算简便就怎样算:
563-495        

397+656            

391+568+709+32

1937-672-937      
1249-(673+249)7589+(3565+231)1236-185×6      482-188+118.
下面各题怎样算简便就怎样算:
563-495        
397+656            
391+568+709+32
1937-672-937      下面各题怎样算简便就怎样算:
563-495        

397+656            

391+568+709+32

1937-672-937      
1249-(673+249)7589+(3565+231)1236-185×6      482-188+118.1249-(673+249)7589+(3565+231)1236-185×6      482-188+118.
▼优质解答
答案和解析
(1)563-495=563-(500-5)=560-500+3=60+3=63;(2)397+656=(400-3)+656=400+656-3=1056-3=1053;(3)391+568+709+32=(391+709)+(568+32)=1100+600=1700;(4)1937-672-937=1937-937-672=1000-672=328;...