35.7×89+35.7×12-35.7怎么简便计算?
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35.7×89+35.7×12-35.7
=35.7×(89+12-1)
=35.7×100
=3570
=35.7×(89+12-1)
=35.7×100
=3570
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35.7×89+35.7×12-35.7
=35.7x(89+12-1)
=35.7x100
=3570
=35.7x(89+12-1)
=35.7x100
=3570
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这道题的简便计算:
35.7*89+35.7*12一35.7
=(89+12一1)*35.7
=100*35.7
=3570
35.7*89+35.7*12一35.7
=(89+12一1)*35.7
=100*35.7
=3570
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35.7*89+35.7*12-35.7
=35.7*(89+12-1)
=35.7*100
=3570
=35.7*(89+12-1)
=35.7*100
=3570
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解:
本题可提取公因式35.7
35.7×89+35.7×12-35.7
=35.7×89+35.7×12-35.7×1
=35.7×(89+12-1)
=35.7×100
=3570
本题可提取公因式35.7
35.7×89+35.7×12-35.7
=35.7×89+35.7×12-35.7×1
=35.7×(89+12-1)
=35.7×100
=3570
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