1.49+499+4999+49999+49991.49+499+4999+49999+499999; 2.(1+11+21+31+41)+(9+19+29+39+49) 3.(9999+9997+1995+……+9001)-(1+3+5+……+999 ) 4.123+234+345+456+5657+678+789 5.1400÷25÷8+350÷4÷125 6.9÷13+13÷9+11÷13+14÷9+6÷136.

来源:学生作业帮助网 编辑:作业帮 时间:2024/12/04 17:25:08
xWnA ~=&29z@@J *.@}@s+`7ۤ$UPm;;momr\!LQ#D0dx240,4h6x9_Z^tgb&BcXyp> ,,W. "iORh`mYPH(c&qw-ɔCʦe<)(ČxjHGݷgGۣF1tV:5x_!b 7y~tks267H'4AdfK_Rz:|[ 3z&(bU Hћ5pk Z!E. R* cbfih-Ŕf<`IdV. DVX|D ]8}6}MX|4ɍ8@ LV1eB)4w^",|pI` ',k#Muҷ죮l=غsoH$7R)ɍRjfG݋Ѡq}#>xv_FOwv7H=?9_UU^**[VR =3ɘ=_gׇt)~]J28Z83J-qJ@!k`y=ȸ.&uC|Վ{ Xά$_y=MJ[T\ېy kf`9=GI©5p