简便运算:75*27+19*25

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简便运算:75*27+19*25简便运算:75*27+19*25简便运算:75*27+19*2575*27+19*25=25×81+25×19=25×(81+19)=25×100=250075*27+

简便运算:75*27+19*25
简便运算:75*27+19*25

简便运算:75*27+19*25
75*27+19*25
=25×81+25×19
=25×(81+19)
=25×100
=2500

75*27+19*25
=25×81+25×19
=25×(81+19)
=25×100
=2500