第1个回答 2015-01-08
(1)684+37+316+63
=684+316+(37+63)
=1000+100
=1100;
(2)147×56+147×45-147
=147×(56+45-1)
=147×100
=14700;
(3)25×125×24×16
=25×16×(125×24)
=400×3000
=1200000;
(4)81+791×9
=9×9+791×9
=(9+791)×9
=800×9
=7200;
(5)(62×125+125×26)÷22
=(62+26)×125÷22
=88×125÷22
=88÷22×125
=4×125
=500;
(6)125×[920÷(750-727)]
=125×[920÷23]
=125×40
=5000.本回答被提问者采纳