74×127+127×24+290简便运算?
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74×127+127×24+290
=127x(74+24)+290
=127x98+290
=127x100+290-127x2
=12700+290-254
=12700+36
=12736
=127x(74+24)+290
=127x98+290
=127x100+290-127x2
=12700+290-254
=12700+36
=12736
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此题的简便运算:
74x127+127x24+290
=127x(74+24)+290
=127(100-2)+290
=12700-254+290
=12700+(290-254)
=12700+36
=12736
74x127+127x24+290
=127x(74+24)+290
=127(100-2)+290
=12700-254+290
=12700+(290-254)
=12700+36
=12736
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