简算(1-12 )×(2-23 )×(3-34 )×(4-45 )×(5- 56 )×(6- 67 )×(7-78 )×(8- 89 )×(9-910 )辛苦啦,被妹妹问住了……小学奥数题
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@FKY@^J+`6bHDD\Uช}LG||˓\rV=#H'2+8AFB:ILa8 0
35Q>m깱+өӭ5{{_ar([,,{Cw߾ыńT H@}~Ri$tQD=Ow
简算(1-12 )×(2-23 )×(3-34 )×(4-45 )×(5- 56 )×(6- 67 )×(7-78 )×(8- 89 )×(9-910 )辛苦啦,被妹妹问住了……小学奥数题
简算(1-12 )×(2-23 )×(3-34 )×(4-45 )×(5- 56 )×(6- 67 )×(7-78 )×(8- 89 )×(9-910 )
辛苦啦,被妹妹问住了……小学奥数题
简算(1-12 )×(2-23 )×(3-34 )×(4-45 )×(5- 56 )×(6- 67 )×(7-78 )×(8- 89 )×(9-910 )辛苦啦,被妹妹问住了……小学奥数题
=-11×21×31×41×51×61×71×81×901
=-473410567997601
(4分之3—2分之1-6分之1)乘12 简算
简算(1-12 )×(2-23 )×(3-34 )×(4-45 )×(5- 56 )×(6- 67 )×(7-78 )×(8- 89 )×(9-910 )辛苦啦,被妹妹问住了……小学奥数题
简算:(3/1-2/1+6/5)-(2/1-6/5)
99×(1-1/2)×(1-1/3)×(1-1/4)×……×(1-1/99) 简算
(2/3-1/12-1/15)X(-60)
简算(1)24×1/5+76÷5(2)5.58-3/5+5.42-2/5
1-(2分之1-3分之1)-(3分之1-4分之1)-(4分之1-5分之1)-(5分之1-6分之1)-……-(9分之1-10分之1)简算
5(x+2)-3(1-x)=23 解方程
-1四次方-(2/3-11/12-14/15)X(-60)÷(-1)2009次方
计算题.好的给100分(-9)+(-13) (-12)+27 (-28)+(-34) 67+(-92) (-27.8)+43.9(-23)+7+(-152)+65 38+(-22)+(+62)+(-78) (-8)+(-10)+2+(-1) (-8)+47+18+(-27)
(-32)+68+(-29)+(-68)= (-21)+251+21+(-151)= 12+35+(-23)+0= (-6)+8+(-4)+12 = 27+(-26)+33+(-27) 12+35+(-23)+0= 39+[-23]+0+[-16]= [-18]+29+[-52]+60= [-3]+[-2]+[-1]+
|-3-2|减【(-5)-(-7)+1/3】=?
简算:1,2/3+17/3-7/2-29/3-5 2.(-2.125)+31/5简算:1,2/3+17/3-7/2-29/3-5 2.(-2.125)+31/5-(-53/8)-(+3.2) 3.5/4-21/3-13/4+12/3 4.-2/3-3/4+11/2+3/4-2+2/3 5.-/-2/3-(+3/2)/-/(-1/5)+(-2/5)/
将正整数按下表规律排列1 2 5 10 17| | | |4-3 6 11 18| | |9-8-7 12 19| |16-15-14-13 20|25-24-23-22-21求上起第10行,左起第13列的数是___(写出理由)
1-(5/7+3/14÷3/4)×2/7简算
简算(1)6.46-(5.37-3.54)(2)(22/9-11/8)×9/11
-1-(2-9)-3
递等式计算题5/6-3/4+1/3 11/12-(1/6-1/8) 7/12-(3/4-1/2) 1/2-(3/4-3/8)