456乘797加456除以456乘797减456怎样简便计算?

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456乘797加456除以456乘797减456怎样简便计算?
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456乘797加456除以456乘797减456怎样简便计算?
456乘797加456除以456乘797减456怎样简便计算?

456乘797加456除以456乘797减456怎样简便计算?
(456*797+456)/456 *797-456=456(797+1)*797/456-456=798*797-456
是这样的式子么?是的话,就这么算最简便了

456*797+456/456*797-456=797*(456+1)-457+1=457*(797-1)+1=457*796+1=363773

456*797+456/456*797-456
=456*797+456/456*797-456
=456*798/456*796
=1*798/1*796
=399/398