48*162-62*45用简便计算怎么做?
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48*162-62*45用简便计算怎么做?
48*162-62*45用简便计算怎么做?
48*162-62*45用简便计算怎么做?
48*(100+62)-62*45
=48*100+48*62-62*45
=4800+62*(48-45)
=4800+62*3
=4800+186
=4986
48*162-62*45
=48×100+48×62-62×45
=4800+62×(48-45)
=4800+186
=4986
(45+3)*162-62*45
=45*(162-62)+3*162
=4500+486
=4986
=62*48-62*45+4800
=62*3+4800
=4986