10101/131313*91简便计算20022002/20012001= 3333*3333+9999*8889= 999*778+333*666= 9999*7+1111*37=简便计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/06 08:25:45
10101/131313*91简便计算20022002/20012001= 3333*3333+9999*8889= 999*778+333*666= 9999*7+1111*37=简便计算
xTKN0J#ű%{8A,J,*LzuxZCKBؗళu^KBA4FWu/ "t"Й JBW4h/$`!߉Y#ѠOor1{Fjfv091cL8#D$! 3:cHfp=KA `ZkdoBˋÓ' ,D3 ?m:Vamۺw;Vcwt h*bSf 

10101/131313*91简便计算20022002/20012001= 3333*3333+9999*8889= 999*778+333*666= 9999*7+1111*37=简便计算
10101/131313*91简便计算
20022002/20012001= 3333*3333+9999*8889=
999*778+333*666=
9999*7+1111*37=
简便计算

10101/131313*91简便计算20022002/20012001= 3333*3333+9999*8889= 999*778+333*666= 9999*7+1111*37=简便计算
20022002/20012001=(2002*(10000+1))/(2001*(10000+1))=2002/2001
3333*3333+9999*8889=9999*1111+9999*8889=9999*(1111+8889)=9999*10000=99990000
999*778+333*666=9999*778+999*222=999*(778+222)=999000
9999*7+1111*37=1111*63+1111*37=1111*(63+37)=1111000

因为131313=13*10101
所以10101/131313*91=10101/(10101*13)*91
=1/13*91
=91/13
=7

3333*3333+3333*(3*8889)=3333*(3333+26667)=3333*30000=99990000 ;
333*3*778+333*666=333*(2334+666)=333*3000=999000;
1111*9*7+1111*37=1111*(63+37)=111100

1.131313=13*10101
10101/131313*91=10101/(10101*13)*91
=1/13*91
=91/13
=7
2...

全部展开

1.131313=13*10101
10101/131313*91=10101/(10101*13)*91
=1/13*91
=91/13
=7
2.3333*3333+9999*8889
=(3333/3)*(3333*3)+9999*8889
=(1111+8889)*9999
=99990000
3.999*778+333*666
=999*778+(333*3)*(666/3)
=999*(778+222)
=999000
4.9999*7+1111*37
=(9999/9)*(7*9)+1111*37
=1111*(63+37)
=111100

收起

10101/131313*9=10101/1443=7

3333*3*1111+9999*8889
=9999*1111+9999*8889
=9999(1111+8889)
=9999*10000
=99990000 10101/131313*91
=10101/(10101*13)*(13*7)
=7