1.25×8.8×2.5怎样简便?
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1.25×8.8×2.5简便计算:
原式=1.25×[2.2×(4×2.5)]
=1.25×[2.2×10]
=1.25×22
=1.25×(20+2)
=1.25×20+1.25×2
=25+2.5
=27.5
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1.25×8.8×2.5简便计算:
原式=1.25×[2.2×(4×2.5)]
=1.25×[2.2×10]
=1.25×22
=1.25×(20+2)
=1.25×20+1.25×2
=25+2.5
=27.5
您的采纳是对我最大的支持!祝您好运!谢谢!
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1.25×8.8×2.5
=1.25×8*1.1×2.5
=10*1.1*2.5
=2.5*11
=2.5*10+2.5
=25+2.5
=27.5
=1.25×8*1.1×2.5
=10*1.1*2.5
=2.5*11
=2.5*10+2.5
=25+2.5
=27.5
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简便计算:1.25×8.8×2.5
1.25×8.8×2.5
=1.25×(4+0.4)x2×2.5
=(1.25×4+1.25x0.4)×(2x2.5)
=(5+0.5)x5
=25+2.5
=27.5
1.25×8.8×2.5
=1.25×(4+0.4)x2×2.5
=(1.25×4+1.25x0.4)×(2x2.5)
=(5+0.5)x5
=25+2.5
=27.5
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