2021×125+1979×188-63×1979用简便方法怎么算?
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解:2021x125+1979x188-63x1979
=2021x125+1979(188-63)
=2021x125+1979x125
=125(2021+1979)
=125x4000=500000
=2021x125+1979(188-63)
=2021x125+1979x125
=125(2021+1979)
=125x4000=500000
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2021x125+1979x(188-63)
=2021x125+1979x125
=(2021+1979)x125
=4000x125
=500000
=2021x125+1979x125
=(2021+1979)x125
=4000x125
=500000
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2021×125+1979×188-63×1979
=2021×125+1979×(188-63)
=2021×125+1979×125
=125×(2021+1979)
=125×4000
=500000
=2021×125+1979×(188-63)
=2021×125+1979×125
=125×(2021+1979)
=125×4000
=500000
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=2021×125+1979×(188-63)
=2021×125+1979×125
=(2021+1979)×125
=4000×125
=500000
=2021×125+1979×125
=(2021+1979)×125
=4000×125
=500000
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2021-05-15 · 知道合伙人教育行家
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2021×125+1979×188-63×1979用简便方法这样算
2021×125+1979×188-63×1979
=2021×125+1979×(188-63)
=2021×125+1979×125
=(2021-1979)×125
=42×125
=13×(4×125)
=13×500
=6500
2021×125+1979×188-63×1979
=2021×125+1979×(188-63)
=2021×125+1979×125
=(2021-1979)×125
=42×125
=13×(4×125)
=13×500
=6500
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