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49十49 49的简单计算

49*49+49=49*(49+1)=49*50=2450

49+49*49=49*(1+49)=49*50=49*100÷2=2450

解:49*(49+49)=49*(100-2)=4900-98=4802

79X49十49=(79+1)X49=80X49=3920

49乘49+49乘49=49*(49+49)=49*98=49*(100-2)=49*100-49*2=4900-98=4802

65x49十34x49十49简便算65x49十34x49十49=49*(65+34+1)=49*100=4900

49又50/49乘50=(50-50/1)*50=50*50-50/1*50=2500-1=2499

49(1+59)49*60(50-1)*603000-602940

4949+49=49X(49+1)=49X50=2450 (记得采纳哦)

-49又48/49*50=-[50-(1/49)]*50=-[50*50-(50/49)]=-[2500-(50/49)]=-2498又48/49.

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