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99乘99加199怎样简便运算

99×99+199 =99×99+100+99 =99x(99+1)+100 =99x100+100 =9900+100 =10000

99乘99加199 =99*99+199 =99*99+99+100 =99*(99+1)+100 =99*100+100 =(99+1)8100 =100*100 =10000

99X999+199 =99X999+100+99 =99X(999+1)+100 =99X1000+100 =99000+100 =99100

99x999+199 =99x(1000-1)+199 =99x1000-99+199 =99100 希望我的回答能帮助你, 如有帮助请采纳

99乘99加199=99×(100-1)+199=9900-99+100+99=10000

就等于99乘以200 99×199+99=99(199+1)=99×200

19+199+1999+19999 =20+200+2000+20000-1-1-1-1 =22220-4 =22216

运用乘法分配律:(a+b)×c=a×c+b×c 199×99+99 =199×(99+1) =199×100 =19900

199*99 =199*(100-1) =19900-199 =19701 154*154-53*154-154 =154x(154-53-1) =154x100 =15400 32*125+55*125+125 =125x(32+55+1) =125x88 =125x8x11 =1000x11 =11000 134*134-134*35+77 =134x(134-35)+77 =134x99+77 =134x(100-1)+77...

=200x1999-1999x199.8 =1999x(200-199.8) =1999x0.2 =(2000-1)x0.2 =400-0.2 =399.8

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