
1.25x(8+0.4)x25如何简便计
2个回答
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1.25x(8+0.4)x25
= 1.25x8x25+1.25x0.4x25
=10x25+1.25x0.4x25
=250+1.25x10
=250+12.5
=262.5
= 1.25x8x25+1.25x0.4x25
=10x25+1.25x0.4x25
=250+1.25x10
=250+12.5
=262.5
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