9()8()7()6()5()4()3()2()1=?

lflyshaha2022-10-04 11:39:541条回答

9()8()7()6()5()4()3()2()1=?
在括号内填上什么运算符号(+,-,×,÷)或符号才能使这一算式的结果最大?

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Lokiwang_ff 共回答了16个问题 | 采纳率93.8%
×
填上“×”时这一算式结果最大
9(×)8(×)7(×)6(×)5(×)4(×)3(×)2(×)1=362880
1年前

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(1+2)-3*4*5/6+7-8+9 = 1
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(1+2)*3*4+5*6+7-8*9 = 1
(1+2)*3*4+5*6-7*8-9 = 1
(1+2)*3*4-5+6*7-8*9 = 1
(1+2)*3*4-5-6-7-8-9 = 1
(1+2)*3/4-5-6*7/8+9 = 1
(1+2)/3*4-5-6+7-8+9 = 1
(1-2)+3+4-5+6-7-8+9 = 1
(1-2)+3+4-5-6+7+8-9 = 1
(1-2)+3-4+5+6-7+8-9 = 1
(1-2)+3*4*5/6-7+8-9 = 1
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1/2-3/(4+5)/6*7+8/9 = 1
1/2*3*(4-5)*6-7+8+9 = 1
1/2*3/(4-5)*6-7+8+9 = 1
1/2/3*(4+5)*6-7+8-9 = 1
1+2+3+4+(5-6)-7+8-9 = 1
1+2+3+4-(5-6)+7-8-9 = 1
1+2+3-4-(5+6)-7+8+9 = 1
1+2+3*4*(5-6)-7+8+9 = 1
1+2+3*4*(5/6)*7-8*9 = 1
1+2+3*4/(5-6)-7+8+9 = 1
1+2-3+4-(5+6)+7-8+9 = 1
1+2-3-4+(5+6)-7-8+9 = 1
1+2-3-4+(5+6)*7-8*9 = 1
1+2-3-4+(5-6)+7+8-9 = 1
1+2-3*4+(5-6)*7+8+9 = 1
1+2-3*4*(5/6)+7-8+9 = 1
1+2*3+4-(5-6)*7-8-9 = 1
1+2*3-4*(5-6)+7-8-9 = 1
1+2*3-4/(5-6)+7-8-9 = 1
1+2*3*4+(5-6)*7-8-9 = 1
1+2*3*4-(5*6)+7+8-9 = 1
1+2*3*4*(5-6)+7+8+9 = 1
1+2*3*4/(5-6)+7+8+9 = 1
1+2/3/4/(5*6)/7/8*9 = 1
1-2+3+4-(5+6)+7+8-9 = 1
1-2+3+4-(5+6)*7+8*9 = 1
1-2+3+4-(5-6)-7-8+9 = 1
1-2+3-4+(5+6)-7+8-9 = 1
1-2+3*4-(5-6)*7-8-9 = 1
1-2+3*4*(5/6)-7+8-9 = 1
1-2-3+4+(5+6)+7-8-9 = 1
1-2-3-4+(5-6)-7+8+9 = 1
1-2-3-4-(5-6)+7-8+9 = 1
1-2-3*4*(5-6)+7-8-9 = 1
1-2-3*4*(5/6)*7+8*9 = 1
1-2-3*4/(5-6)+7-8-9 = 1
1-2*3+4*(5-6)-7+8+9 = 1
1-2*3+4/(5-6)-7+8+9 = 1
1-2*3-4+(5-6)*7+8+9 = 1
1-2*3*4+(5*6)-7-8+9 = 1
1-2*3*4-(5-6)*7+8+9 = 1
1-2*3*4*(5-6)-7-8-9 = 1
1-2*3*4/(5-6)-7-8-9 = 1
1-2/3/4/(5*6)/7/8*9 = 1
1*2+3+4+(5-6)*7+8-9 = 1
1*2+3-4*(5-6)-7+8-9 = 1
1*2+3-4/(5-6)-7+8-9 = 1
1*2+3*4+(5+6)-7-8-9 = 1
1*2-3+4*(5-6)+7+8-9 = 1
1*2-3+4/(5-6)+7+8-9 = 1
1*2-3-4+(5*6)-7-8-9 = 1
1*2-3-4-(5-6)*7+8-9 = 1
1*2-3*4-(5-6)-7+8+9 = 1
1*2*3+4+(5-6)-7+8-9 = 1
1*2*3+4-(5-6)+7-8-9 = 1
1*2*3-4-(5+6)-7+8+9 = 1
1*2*3*4-(5-6)-7-8-9 = 1
1/2*3*4-(5+6)+7+8-9 = 1
1/2*3*4-(5+6)*7+8*9 = 1
1/2*3*4-(5-6)-7-8+9 = 1
1/2*3*4*(5+6)+7-8*9 = 1
1/2*3*4*(5+6)-7*8-9 = 1
1/2*3/4+(5+6)*7/8-9 = 1
1+2+3+4+5-(6+7)+8-9 = 1
1+2+3+4-5+(6+7)-8-9 = 1
1+2+3+4*5-(6*7)+8+9 = 1
1+2+3-4-5-(6+7)+8+9 = 1
1+2+3*4*5/(6/7)-8*9 = 1
1+2-3+4-5-(6-7)-8+9 = 1
1+2-3-4+5+(6-7)-8+9 = 1
1+2-3-4+5-(6-7)+8-9 = 1
1+2-3/4-5-(6*7)/8+9 = 1
1+2*3-4*5+(6+7)-8+9 = 1
1+2/3/4/5/(6*7)/8*9 = 1
1-2+3+4-5+(6-7)-8+9 = 1
1-2+3+4-5-(6-7)+8-9 = 1
1-2+3-4+5+(6-7)+8-9 = 1
1-2+3/4+5+(6*7)/8-9 = 1
1-2-3+4+5+(6+7)-8-9 = 1
1-2-3-4+5-(6+7)+8+9 = 1
1-2-3-4-5+(6+7)-8+9 = 1
1-2-3-4*5+(6*7)-8-9 = 1
1-2-3*4*5/(6/7)+8*9 = 1
1-2*3+4*5-(6+7)+8-9 = 1
1-2/3/4/5/(6*7)/8*9 = 1
1*2+3-4*5+(6-7)+8+9 = 1
1*2+3*4+5+(6-7)-8-9 = 1
1*2-3+4*5+(6-7)-8-9 = 1
1*2-3-4+5+(6-7)*8+9 = 1
1*2-3-4-5*(6-7)-8+9 = 1
1*2-3-4-5/(6-7)-8+9 = 1
1*2-3*4-5+(6-7)+8+9 = 1
1*2-3*4*5+(6*7)+8+9 = 1
1*2-3*4*5-(6+7)+8*9 = 1
1*2*3+4+5-(6+7)+8-9 = 1
1*2*3+4-5+(6+7)-8-9 = 1
1*2*3+4*5-(6*7)+8+9 = 1
1*2*3-4-5-(6+7)+8+9 = 1
1*2*3*4-5+(6-7)-8-9 = 1
1/2-3/4+5+(6*7)/8-9 = 1
1/2*3*4-5+(6-7)-8+9 = 1
1/2*3*4-5-(6-7)+8-9 = 1
1+2+3+4+5-6-(7-8)-9 = 1
1+2+3+4-5+6+(7-8)-9 = 1
1+2+3-4-5-6-(7-8)+9 = 1
1+2+3-4*5+6-(7-8)*9 = 1
1+2+3-4*5-6*(7-8)+9 = 1
1+2+3-4*5-6/(7-8)+9 = 1
1+2+3-4*5/6-(7+8)/9 = 1
1+2-3+4-5-6+(7-8)+9 = 1
1+2-3-4+5+6-(7+8)+9 = 1
1+2-3-4+5-6+(7+8)-9 = 1
1+2-3-4-5+6*(7+8)/9 = 1
1+2-3-4*5*6/(7+8)+9 = 1
1+2-3*4-5+6-(7-8)*9 = 1
1+2-3*4-5-6*(7-8)+9 = 1
1+2-3*4-5-6/(7-8)+9 = 1
1+2-3*4*5/6+(7-8)+9 = 1
1+2-3/4-5-6*(7/8)+9 = 1
1+2*3+4+5+6*(7-8)-9 = 1
1+2*3+4+5+6/(7-8)-9 = 1
1+2*3+4+5-6+(7-8)*9 = 1
1+2*3-4-5+6*(7-8)+9 = 1
1+2*3-4-5+6/(7-8)+9 = 1
1+2*3-4-5-6-(7-8)*9 = 1
1+2*3-4*5+6+(7-8)+9 = 1
1+2*3*4-5*6+(7+8)-9 = 1
1+2/3*4+5-6-(7+8)/9 = 1
1+2/3/4/5/6/(7*8)*9 = 1
1-2+3+4+5-6*(7+8)/9 = 1
1-2+3+4-5+6-(7+8)+9 = 1
1-2+3+4-5-6+(7+8)-9 = 1
1-2+3+4*5*6/(7+8)-9 = 1
1-2+3-4+5+6-(7-8)-9 = 1
1-2+3*4+5+6*(7-8)-9 = 1
1-2+3*4+5+6/(7-8)-9 = 1
1-2+3*4+5-6+(7-8)*9 = 1
1-2+3*4*5/6-(7-8)-9 = 1
1-2+3/4+5+6*(7/8)-9 = 1
1-2-3+4+5+6+(7-8)-9 = 1
1-2-3+4*5+6*(7-8)-9 = 1
1-2-3+4*5+6/(7-8)-9 = 1
1-2-3+4*5-6+(7-8)*9 = 1
1-2-3+4*5/6+(7+8)/9 = 1
1-2-3-4+5-6-(7-8)+9 = 1
1-2-3-4-5+6+(7-8)+9 = 1
1-2*3+4+5+6+(7-8)*9 = 1
1-2*3+4+5-6*(7-8)-9 = 1
1-2*3+4+5-6/(7-8)-9 = 1
1-2*3+4*5-6-(7-8)-9 = 1
1-2*3-4-5+6-(7-8)*9 = 1
1-2*3-4-5-6*(7-8)+9 = 1
1-2*3-4-5-6/(7-8)+9 = 1
1-2*3*4+5*6-(7+8)+9 = 1
1-2/3+4+5*6*(7-8)/9 = 1
1-2/3+4+5*6/(7-8)/9 = 1
1-2/3*4-5+6+(7+8)/9 = 1
1-2/3/4/5/6/(7*8)*9 = 1
1*2+3+4-5+6+(7-8)*9 = 1
1*2+3+4-5-6*(7-8)-9 = 1
1*2+3+4-5-6/(7-8)-9 = 1
1*2+3-4*5+6-(7-8)+9 = 1
1*2+3*4+5+6-(7+8)-9 = 1
1*2+3*4*5/6*(7-8)+9 = 1
1*2+3*4*5/6/(7-8)+9 = 1
1*2-3+4-5+6*(7-8)+9 = 1
1*2-3+4-5+6/(7-8)+9 = 1
1*2-3+4-5-6-(7-8)*9 = 1
1*2-3+4*5+6-(7+8)-9 = 1
1*2-3+4*5/6/(7+8)*9 = 1
1*2-3-4+5*6-(7+8)-9 = 1
1*2-3*4+5*6/(7+8)+9 = 1
1*2-3*4-5+6-(7-8)+9 = 1
1*2-3*4*5-6+(7*8)+9 = 1
1*2-3*4*5/6-(7-8)*9 = 1
1*2*3+4+5-6-(7-8)-9 = 1
1*2*3+4-5+6+(7-8)-9 = 1
1*2*3-4-5-6-(7-8)+9 = 1
1*2*3-4*5+6-(7-8)*9 = 1
1*2*3-4*5-6*(7-8)+9 = 1
1*2*3-4*5-6/(7-8)+9 = 1
1*2*3-4*5/6-(7+8)/9 = 1
1*2*3*4-5+6-(7+8)-9 = 1
1*2*3/4-5/6/(7+8)*9 = 1
1*2/3-4+5+6*(7-8)/9 = 1
1*2/3-4+5+6/(7-8)/9 = 1
1*2/3/4-5/6+(7+8)/9 = 1
1/2-3+4-5/6/(7+8)*9 = 1
1/2-3-4-5/6*(7-8)*9 = 1
1/2-3-4-5/6/(7-8)*9 = 1
1/2-3/4+5+6*(7/8)-9 = 1
1/2*3-4+5/6*(7+8)-9 = 1
1/2*3*4+5-6*(7+8)/9 = 1
1/2*3*4-5+6-(7+8)+9 = 1
1/2*3*4-5-6+(7+8)-9 = 1
1+2+3+4+5-6-7+(8-9) = 1
1+2+3+4-5+6+7-(8+9) = 1
1+2+3+4*5-6*7+(8+9) = 1
1+2+3-4-5-6-7+(8+9) = 1
1+2+3*4*5/6*7-(8*9) = 1
1+2-3+4-5-6+7-(8-9) = 1
1+2-3+4*5*6-7*(8+9) = 1
1+2-3-4+5+6-7-(8-9) = 1
1+2-3-4+5-6+7+(8-9) = 1
1+2-3*4*5/6+7-(8-9) = 1
1+2*3-4*5+6+7-(8-9) = 1
1+2*3*4-5*6+7+(8-9) = 1
1-2+3+4-5+6-7-(8-9) = 1
1-2+3+4-5-6+7+(8-9) = 1
1-2+3-4+5+6-7+(8-9) = 1
1-2+3-4*5*6+7*(8+9) = 1
1-2+3*4*5/6-7+(8-9) = 1
1-2-3+4+5+6+7-(8+9) = 1
1-2-3-4+5-6-7+(8+9) = 1
1-2-3-4-5+6+7-(8-9) = 1
1-2-3-4*5+6*7-(8+9) = 1
1-2-3*4*5/6*7+(8*9) = 1
1-2*3+4*5-6-7+(8-9) = 1
1-2*3*4+5*6-7-(8-9) = 1
1*2+3+4+5-6+7*(8-9) = 1
1*2+3+4+5-6+7/(8-9) = 1
1*2+3-4*5+6-7+(8+9) = 1
1*2+3*4+5+6-7-(8+9) = 1
1*2-3+4*5+6-7-(8+9) = 1
1*2-3-4+5-6-7*(8-9) = 1
1*2-3-4+5-6-7/(8-9) = 1
1*2-3-4+5*6-7-(8+9) = 1
1*2-3*4-5+6-7+(8+9) = 1
1*2-3*4*5+6*7+(8+9) = 1
1*2-3*4*5-6-7+(8*9) = 1
1*2*3+4+5-6-7+(8-9) = 1
1*2*3+4-5+6+7-(8+9) = 1
1*2*3+4*5-6*7+(8+9) = 1
1*2*3-4-5-6-7+(8+9) = 1
1*2*3*4-5+6-7-(8+9) = 1
1*2*3*4-5*6-7*(8-9) = 1
1*2*3*4-5*6-7/(8-9) = 1
1/2*3*4-5+6-7-(8-9) = 1
1/2*3*4-5-6+7+(8-9) = 1
(1+(2+3))+4+5-6-7+8-9 = 1
(1+(2+3))+4-5+6+7-8-9 = 1
(1+(2+3))+4*5-6*7+8+9 = 1
(1+(2+3))-4-5-6-7+8+9 = 1
(1+(2+3))*4-5+6-7-8-9 = 1
(1+(2-3))+4-5-6+7-8+9 = 1
(1+(2-3))-4+5+6-7-8+9 = 1
(1+(2-3))-4+5-6+7+8-9 = 1
(1+(2-3))*4+5+6+7-8-9 = 1
(1+(2-3))*4*5*6*7-8+9 = 1
(1+(2-3))*4*5*6/7-8+9 = 1
(1+(2-3))*4*5/6*7-8+9 = 1
(1+(2-3))*4*5/6/7-8+9 = 1
(1+(2-3))*4/5*6*7-8+9 = 1
(1+(2-3))*4/5*6/7-8+9 = 1
(1+(2-3))*4/5/6*7-8+9 = 1
(1+(2-3))*4/5/6/7-8+9 = 1
(1+(2-3))/4+5+6+7-8-9 = 1
(1+(2-3))/4*5*6*7-8+9 = 1
(1+(2-3))/4*5*6/7-8+9 = 1
(1+(2-3))/4*5/6*7-8+9 = 1
(1+(2-3))/4*5/6/7-8+9 = 1
(1+(2-3))/4/5*6*7-8+9 = 1
(1+(2-3))/4/5*6/7-8+9 = 1
(1+(2-3))/4/5/6*7-8+9 = 1
(1+(2-3))/4/5/6/7-8+9 = 1
(1+(2*3))-4*5+6+7-8+9 = 1
(1-(2+3))+4+5+6+7-8-9 = 1
(1-(2+3))-4+5-6-7+8+9 = 1
(1-(2+3))-4-5+6+7-8+9 = 1
(1-(2+3))-4*5+6*7-8-9 = 1
(1-(2+3))*4+5+6+7+8-9 = 1
(1-(2+3))*4-5*6+7*8-9 = 1
(1-(2-3))+4-5+6-7-8+9 = 1
(1-(2-3))+4-5-6+7+8-9 = 1
(1-(2-3))-4+5+6-7+8-9 = 1
(1-(2-3))*4+5-6-7-8+9 = 1
(1-(2-3))*4-5+6-7+8-9 = 1
(1-(2*3))+4*5-6-7+8-9 = 1
(1-(2*3))*4+5+6-7+8+9 = 1
(1*(2+3))-4*5+6-7+8+9 = 1
(1*(2+3))*4-5-6-7+8-9 = 1
(1*(2-3))+4*5+6-7-8-9 = 1
(1*(2-3))-4+5*6-7-8-9 = 1
(1*(2-3))*4+5+6-7-8+9 = 1
(1*(2-3))*4+5-6+7+8-9 = 1
(1*(2-3))/4+5+6*7/8-9 = 1
(1*(2*3))+4+5-6-7+8-9 = 1
(1*(2*3))+4-5+6+7-8-9 = 1
(1*(2*3))+4*5-6*7+8+9 = 1
(1*(2*3))-4-5-6-7+8+9 = 1
(1*(2*3))*4-5+6-7-8-9 = 1
(1/(2+3))+4/5+6-7-8+9 = 1
(1/(2+3))+4/5-6+7+8-9 = 1
(1/(2-3))+4*5+6-7-8-9 = 1
(1/(2-3))-4+5*6-7-8-9 = 1
(1/(2-3))*4+5+6-7-8+9 = 1
(1/(2-3))*4+5-6+7+8-9 = 1
(1/(2-3))/4+5+6*7/8-9 = 1
(1/(2/3))*4-5+6-7-8+9 = 1
(1/(2/3))*4-5-6+7+8-9 = 1
(1+2)+(3+4)+5-6-7+8-9 = 1
(1+2)+(3+4)-5+6+7-8-9 = 1
(1+2)+(3-4)-5-6-7+8+9 = 1
(1+2)+(3*4)*5/6*7-8*9 = 1
(1+2)-(3+4)+5+6-7-8+9 = 1
(1+2)-(3+4)+5-6+7+8-9 = 1
(1+2)-(3-4)-5-6+7-8+9 = 1
(1+2)-(3*4)*5/6+7-8+9 = 1
(1+2)-(3/4)-5-6*7/8+9 = 1
(1+2)*(3+4)+5-6*7+8+9 = 1
(1+2)*(3+4)-5*6-7+8+9 = 1
(1+2)*(3-4)*5+6-7+8+9 = 1
(1+2)*(3*4)+5*6+7-8*9 = 1
(1+2)*(3*4)+5*6-7*8-9 = 1
(1+2)*(3*4)-5+6*7-8*9 = 1
(1+2)*(3*4)-5-6-7-8-9 = 1
(1+2)*(3/4)-5-6*7/8+9 = 1
(1+2)/(3-4)*5+6-7+8+9 = 1
(1+2)/(3/4)-5-6+7-8+9 = 1
(1-2)+(3+4)-5+6-7-8+9 = 1
(1-2)+(3+4)-5-6+7+8-9 = 1
(1-2)+(3-4)+5+6-7+8-9 = 1
(1-2)+(3*4)*5/6-7+8-9 = 1
(1-2)+(3/4)+5+6*7/8-9 = 1
(1-2)-(3+4)+5-6-7+8+9 = 1
(1-2)-(3+4)-5+6+7-8+9 = 1
(1-2)-(3-4)+5+6+7-8-9 = 1
(1-2)-(3*4)*5/6*7+8*9 = 1
(1-2)*(3*4)-5-6+7+8+9 = 1
(1*2)+(3-4)*5-6-7+8+9 = 1
(1*2)+(3*4)+5+6-7-8-9 = 1
(1*2)-(3+4)+5*6-7-8-9 = 1
(1*2)-(3*4)-5+6-7+8+9 = 1
(1*2)-(3*4)*5+6*7+8+9 = 1
(1*2)-(3*4)*5-6+7*8+9 = 1
(1*2)-(3*4)*5-6-7+8*9 = 1
(1*2)*(3+4)+5+6-7-8-9 = 1
(1*2)*(3-4)+5+6-7+8-9 = 1
(1*2)*(3*4)-5+6-7-8-9 = 1
(1*2)/(3-4)+5+6-7+8-9 = 1
(1/2)-(3/4)+5+6*7/8-9 = 1
(1/2)*(3*4)-5+6-7-8+9 = 1
(1/2)*(3*4)-5-6+7+8-9 = 1
(1+2)+3+(4+5)-6-7+8-9 = 1
(1+2)+3+(4-5)+6+7-8-9 = 1
(1+2)+3+(4*5)-6*7+8+9 = 1
(1+2)+3-(4+5)-6-7+8+9 = 1
(1+2)+3*(4*5)/6*7-8*9 = 1
(1+2)-3+(4-5)-6+7-8+9 = 1
(1+2)-3-(4-5)+6-7-8+9 = 1
(1+2)-3-(4-5)-6+7+8-9 = 1
(1+2)-3*(4+5)+6*7-8-9 = 1
(1+2)-3*(4*5)/6+7-8+9 = 1
(1+2)*3-(4*5)+6+7+8-9 = 1
(1+2)*3/(4+5)+6-7-8+9 = 1
(1+2)*3/(4+5)-6+7+8-9 = 1
(1+2)/3+(4-5)*6+7+8-9 = 1
(1+2)/3-(4-5)*6-7-8+9 = 1
(1+2)/3*(4-5)-6+7-8+9 = 1
(1+2)/3/(4-5)-6+7-8+9 = 1
(1-2)+3+(4-5)+6-7-8+9 = 1
(1-2)+3+(4-5)-6+7+8-9 = 1
(1-2)+3-(4-5)+6-7+8-9 = 1
(1-2)+3*(4+5)-6*7+8+9 = 1
(1-2)+3*(4*5)/6-7+8-9 = 1
(1-2)-3+(4+5)+6+7-8-9 = 1
(1-2)-3-(4+5)+6+7-8+9 = 1
(1-2)-3-(4-5)-6-7+8+9 = 1
(1-2)-3-(4*5)+6*7-8-9 = 1
(1-2)-3*(4*5)/6*7+8*9 = 1
(1-2)*3+(4-5)*6-7+8+9 = 1
(1-2)*3+(4*5)-6+7-8-9 = 1
(1-2)/3*(4+5)-6-7+8+9 = 1
(1*2)+3-(4-5)*6+7-8-9 = 1
(1*2)+3-(4*5)+6-7+8+9 = 1
(1*2)+3*(4-5)-6+7-8+9 = 1
(1*2)+3/(4-5)-6+7-8+9 = 1
(1*2)-3+(4-5)*6+7-8+9 = 1
(1*2)-3+(4*5)+6-7-8-9 = 1
(1*2)-3*(4-5)+6+7-8-9 = 1
(1*2)-3*(4*5)+6*7+8+9 = 1
(1*2)-3*(4*5)-6+7*8+9 = 1
(1*2)-3*(4*5)-6-7+8*9 = 1
(1*2)-3/(4-5)+6+7-8-9 = 1
(1*2)*3+(4+5)-6-7+8-9 = 1
(1*2)*3+(4-5)+6+7-8-9 = 1
(1*2)*3+(4*5)-6*7+8+9 = 1
(1*2)*3-(4+5)-6-7+8+9 = 1
(1*2)*3*(4+5)-6-7*8+9 = 1
(1*2)*3*(4+5)/6-7+8-9 = 1
(1/2)-3/(4+5)/6*7+8/9 = 1
(1/2)*3*(4-5)*6-7+8+9 = 1
(1/2)*3/(4-5)*6-7+8+9 = 1
(1/2)/3*(4+5)*6-7+8-9 = 1
(1+2)+3+4+(5-6)-7+8-9 = 1
(1+2)+3+4-(5-6)+7-8-9 = 1
(1+2)+3-4-(5+6)-7+8+9 = 1
(1+2)+3*4*(5-6)-7+8+9 = 1
(1+2)+3*4*(5/6)*7-8*9 = 1
(1+2)+3*4/(5-6)-7+8+9 = 1
(1+2)-3+4-(5+6)+7-8+9 = 1
(1+2)-3-4+(5+6)-7-8+9 = 1
(1+2)-3-4+(5+6)*7-8*9 = 1
(1+2)-3-4+(5-6)+7+8-9 = 1
(1+2)-3*4+(5-6)*7+8+9 = 1
(1+2)-3*4*(5/6)+7-8+9 = 1
(1+2)*3*4+(5*6)+7-8*9 = 1
(1+2)*3*4+(5*6)-7*8-9 = 1
(1+2)*3*4-(5+6)-7-8-9 = 1
(1+2)/3*4-(5+6)+7-8+9 = 1
(1-2)+3+4-(5+6)+7+8-9 = 1
(1-2)+3+4-(5+6)*7+8*9 = 1
(1-2)+3+4-(5-6)-7-8+9 = 1
(1-2)+3-4+(5+6)-7+8-9 = 1
(1-2)+3*4-(5-6)*7-8-9 = 1
(1-2)+3*4*(5/6)-7+8-9 = 1
(1-2)-3+4+(5+6)+7-8-9 = 1
(1-2)-3-4+(5-6)-7+8+9 = 1
(1-2)-3-4-(5-6)+7-8+9 = 1
(1-2)-3*4*(5-6)+7-8-9 = 1
(1-2)-3*4*(5/6)*7+8*9 = 1
(1-2)-3*4/(5-6)+7-8-9 = 1
(1-2)*3+4*(5-6)+7-8+9 = 1
(1-2)*3+4/(5-6)+7-8+9 = 1
(1-2)*3-4-(5-6)*7-8+9 = 1
(1-2)*3*4-(5+6)+7+8+9 = 1
(1*2)+3+4+(5-6)*7+8-9 = 1
(1*2)+3-4*(5-6)-7+8-9 = 1
(1*2)+3-4/(5-6)-7+8-9 = 1
(1*2)+3*4+(5+6)-7-8-9 = 1
(1*2)-3+4*(5-6)+7+8-9 = 1
(1*2)-3+4/(5-6)+7+8-9 = 1
(1*2)-3-4+(5*6)-7-8-9 = 1
(1*2)-3-4-(5-6)*7+8-9 = 1
(1*2)-3*4-(5-6)-7+8+9 = 1
(1*2)*3+4+(5-6)-7+8-9 = 1
(1*2)*3+4-(5-6)+7-8-9 = 1
(1*2)*3-4-(5+6)-7+8+9 = 1
(1*2)*3*4-(5-6)-7-8-9 = 1
(1/2)*3*4-(5+6)+7+8-9 = 1
(1/2)*3*4-(5+6)*7+8*9 = 1
(1/2)*3*4-(5-6)-7-8+9 = 1
(1/2)*3*4*(5+6)+7-8*9 = 1
(1/2)*3*4*(5+6)-7*8-9 = 1
(1/2)*3/4+(5+6)*7/8-9 = 1
(1+2)+3+4+5-(6+7)+8-9 = 1
(1+2)+3+4-5+(6+7)-8-9 = 1
(1+2)+3+4*5-(6*7)+8+9 = 1
(1+2)+3-4-5-(6+7)+8+9 = 1
(1+2)+3*4*5/(6/7)-8*9 = 1
(1+2)-3+4-5-(6-7)-8+9 = 1
(1+2)-3-4+5+(6-7)-8+9 = 1
(1+2)-3-4+5-(6-7)+8-9 = 1
(1+2)-3/4-5-(6*7)/8+9 = 1
(1+2)*3+4+5+(6-7)*8-9 = 1
(1+2)*3+4-5*(6-7)-8-9 = 1
(1+2)*3+4-5/(6-7)-8-9 = 1
(1+2)*3-4+5*(6-7)-8+9 = 1
(1+2)*3-4+5/(6-7)-8+9 = 1
(1+2)*3-4-5+(6-7)*8+9 = 1
(1+2)*3-4*5+(6+7)+8-9 = 1
(1+2)*3*4-5+(6*7)-8*9 = 1
(1+2)*3*4-5-(6+7)-8-9 = 1
(1+2)*3/4-5-(6*7)/8+9 = 1
(1+2)/3+4+5*(6-7)-8+9 = 1
(1+2)/3+4+5/(6-7)-8+9 = 1
(1+2)/3+4-5+(6-7)*8+9 = 1
(1+2)/3-4+5-(6-7)*8-9 = 1
(1+2)/3-4-5*(6-7)+8-9 = 1
(1+2)/3-4-5/(6-7)+8-9 = 1
(1+2)/3*4-5-(6-7)-8+9 = 1
(1-2)+3+4-5+(6-7)-8+9 = 1
(1-2)+3+4-5-(6-7)+8-9 = 1
(1-2)+3-4+5+(6-7)+8-9 = 1
(1-2)+3/4+5+(6*7)/8-9 = 1
(1-2)-3+4+5+(6+7)-8-9 = 1
(1-2)-3-4+5-(6+7)+8+9 = 1
(1-2)-3-4-5+(6+7)-8+9 = 1
(1-2)-3-4*5+(6*7)-8-9 = 1
(1-2)-3*4*5/(6/7)+8*9 = 1
(1-2)*3+4*5-(6-7)-8-9 = 1
(1-2)*3*4-5-(6-7)+8+9 = 1
(1*2)+3-4*5+(6-7)+8+9 = 1
(1*2)+3*4+5+(6-7)-8-9 = 1
(1*2)-3+4*5+(6-7)-8-9 = 1
(1*2)-3-4+5+(6-7)*8+9 = 1
(1*2)-3-4-5*(6-7)-8+9 = 1
(1*2)-3-4-5/(6-7)-8+9 = 1
(1*2)-3*4-5+(6-7)+8+9 = 1
(1*2)-3*4*5+(6*7)+8+9 = 1
(1*2)-3*4*5-(6+7)+8*9 = 1
(1*2)*3+4+5-(6+7)+8-9 = 1
(1*2)*3+4-5+(6+7)-8-9 = 1
(1*2)*3+4*5-(6*7)+8+9 = 1
(1*2)*3-4-5-(6+7)+8+9 = 1
(1*2)*3*4-5+(6-7)-8-9 = 1
(1/2)-3/4+5+(6*7)/8-9 = 1
(1/2)*3*4-5+(6-7)-8+9 = 1
(1/2)*3*4-5-(6-7)+8-9 = 1
9/4-x²=2/2+x
福哥近卫军1年前1
bi591151217 共回答了18个问题 | 采纳率94.4%
9/4-x²=2/2+x
9=2(2-x)
2x=-5
x= -5/2
2 1 7 6 3 5 8 9 4
2 1 7 6 3 5 8 9 4
4 7 5
9 7
2 4
4 1 2 6
6 1
7 3
8 7 6
3 5 9 4 2 1
shaohuawei1年前0
共回答了个问题 | 采纳率
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
在空白处添+或-号使得数为最小的正数
西红柿土1年前6
nitianweiwo3 共回答了3个问题 | 采纳率
1+2-3+4-5+6-7+8-9
6,7,8,9,
6,7,8,9,

35169651年前1
哈姆大象 共回答了19个问题 | 采纳率89.5%
设需要质量分数为30%盐水的质量为X根据溶液混合前后溶质的质量不变得:20Kg*10%+X*30%=(20Kg+X)*22%X=30Kg设需要质量分数为98%的药液的质量为X根据溶液在稀释前后溶质的质量不变得:2940g*10%=X*98%X=300g设原盐水的...
/\d{6}/ /^[0-9]{6}$/ /d{6}/ /\d{6}$/
/d{6}/ /^[0-9]{6}$/ /d{6}/ /d{6}$/
/d{6}/
/^[0-9]{6}$/
/d{6}/
/d{6}$/
无痕世界1年前1
水果汉堡 共回答了18个问题 | 采纳率83.3%
d是匹配数字,{6}是限定长度为6位,连起来d{6}就匹配6位的数字,比如039482或者929482等等
^[0-9]{6}$中的^和$表示行的开始和结束,中间的[0-9]{6}意思与上面的d{6}一样.
d{6}中的d就是一个普通字母d,连起来匹配6个d
d{6}$上面说过了$匹配行的结束,连起来这个就匹配一个以6位数字结束的行.
2/3+5/2+3/1+8/9+7/3=?
xcKevin1年前1
no-three-no-four 共回答了16个问题 | 采纳率93.8%
3/9
1+8= 9-6= 7+2= 2+6= 8-5= 4+5= 3+6= 8-3= 4+4= 2+7= 9-5= 9-2=
1+8= 9-6= 7+2= 2+6=
8-5= 4+5= 3+6= 8-3=
4+4= 2+7= 9-5= 9-2=
8-7= 8+1= 5+4= 3+5=
9-4= 5+3= 0+8= 8-6=
zlw9271年前1
ML的N次方 共回答了29个问题 | 采纳率89.7%
9;3;9;8;3;9;9;5;8;9;4;7;1;9;9;8;5;8;8;2
1+2+3+4+5+6+7+8+9
1+2+3+4+5+6+7+8+9
一直加下去加到100等于几?
hemengzhi1年前5
show168 共回答了1个问题 | 采纳率100%
等于5050,1+100=101,2+99=101,以此类推共50组,101x50=5050
0 1 2 3 4 5 6 7 8 9
0 1 2 3 4 5 6 7 8 9
A和B 比大小 抽签
抽到一样的A赢 比如抽签 A是4 B是4 那就算A赢
A抽到0=5 B抽到0=0
那A赢B是几率是多少
1楼还是没说明白 A赢B的几率是多少啊 还有A抽到0=5的 别忘了 如果一样还是A赢
kame19831年前3
娃哈哈c337 共回答了25个问题 | 采纳率92%
这是个简单的数数问题,楼上两位搞得那么复杂,还都弄错了.我们只要把所有可能性都列出来就能算出答案了:
A 0 (=5):B 0-5输,6-9赢,合计A赢6,B赢4
A 1:B 0-1输,2-9赢,合计A赢2,B赢8
A 2:B 0-2输,3-9赢,合计A赢3,B赢7
A 3:B 0-3输,4-9赢,合计A赢4,B赢6
A 4:B 0-4输,5-9赢,合计A赢5,B赢5
A 5:B 0-5输,6-9赢,合计A赢6,B赢4
A 6:B 0-6输,7-9赢,合计A赢7,B赢3
A 7:B 0-7输,8-9赢,合计A赢8,B赢2
A 8:B 0-8输,9赢,合计A赢9,B赢1
A 9:B 全输,合计A赢10,B赢0
总计A赢60,B赢40
所以A赢B的几率是60%
如果按二楼的算法,只需要改正A抽0时赢的几率(总赢率要增加5%)就行了:
55%+5%=60%
结果是一样的.
1+3=2² 1+3+5=3² 1+3+5+7=4² 1+3+5+7+9=5²
1+3=2² 1+3+5=3² 1+3+5+7=4² 1+3+5+7+9=5² .按规律第个等式是?
ch32dj1年前1
浪漫雪季 共回答了17个问题 | 采纳率82.4%
1+3+5+.+(2n-1)=n^2
1/1*2+1/2*3+1/3*4+1/4*5+1/5*6=1/6*7+1/7*8+1/8*9
1/1*2+1/2*3+1/3*4+1/4*5+1/5*6=1/6*7+1/7*8+1/8*9
一乘二分之一加二乘三分之一加三乘四分之一加四乘五分之一加五乘六分之一加六乘七分之一加七乘八分之一加八乘九分之一 等于多少?
1.一乘四分之一加四乘七分之一加七乘十分之一加十乘十三分之一加……加九十七乘一百分之一
2.1*2*3/1+2*3*4/1+3*4*5/1+4*5*6/1+5*6*7/1
3.1*3/1+3*5/1+5*7/1+7*9/1+9*11/1+11*13/1+13*15/1
b1691年前3
liu_ch000 共回答了11个问题 | 采纳率81.8%
1/1*2+1/2*3+1/3*4+1/4*5+1/5*6+1/6*7+1/7*8+1/8*9
=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8+1/8-1/9
=1-1/9
=8/9
(-9/1/3)-|-4/5/6|+|0-5/1/6|-2/3=?
光号列车1年前1
rockswj 共回答了23个问题 | 采纳率78.3%
(-9/1/3)-|-4/5/6|+|0-5/1/6|-2/3
=-9/1/3-4/5/6+5/1/6-2/3
=-(9/1/3+2/3)+(-4/5/6+5/1/6)
=-10+1/3
=-9/2/3
1+1+1+1/5+8/4+9/2
a74724291年前1
foamqueen520 共回答了25个问题 | 采纳率84%
9.7
(9-X)(-x-9)=__________
(9-X)(-x-9)=__________
1道填空题.等于白送!
妃碧薰嫦1年前5
jordangang200157 共回答了19个问题 | 采纳率68.4%
x^2-81
1+2+3+5+4+6+9
zhangyuyang1年前4
mangue 共回答了27个问题 | 采纳率88.9%
答案等于30
1/3+2/3+1/6+2/6+3/6+4/6+5/6+1/9+2/9+3/9+4/9+5/9+6/9+7/9+8/9+
1/3+2/3+1/6+2/6+3/6+4/6+5/6+1/9+2/9+3/9+4/9+5/9+6/9+7/9+8/9+.,第2011个数是几分之几?
佳贝猫猫1年前1
千万的呼唤 共回答了19个问题 | 采纳率84.2%
答:
当分母为3n时有3n-1项,
总共有2+5+8+…+3n-1=(3n²+n)/2项
当n=36时(3n²+n)/2=19622011
所以第2011个数分母为3×37=111,分子为2011-1962=49
所以第2011个数是49/111
(1)-( )-( )-( )| | | |( )-( )-( )-( )| | | |( )-( )-( )-(9)1
(1)-( )-( )-( )
| | | |
( )-( )-( )-( )
| | | |
( )-( )-( )-(9)
1到12 4个数相加等于25.一共是6个正方形格子 要添6个和是25的.其中1和9是固定.每个数只许出现1次
cat123451年前3
蚂蚁小公主 共回答了17个问题 | 采纳率94.1%
1 12 4 11
5 7 2 8
3 10 6 9
1 4 0 1 9.
bcy1261年前1
scorpio2222 共回答了13个问题 | 采纳率100%
一世你要久
x-4/x-5 -x-5/x-6 =x-7/x-8 -x-8/x-9
huanggd6241年前0
共回答了个问题 | 采纳率
1+ 1/1*3 +1/2*3 +1/2*5 +1/3*5 +1/3*7 +1/4*7 +1/4*9
1+ 1/1*3 +1/2*3 +1/2*5 +1/3*5 +1/3*7 +1/4*7 +1/4*9
原式=2*[(1/1*2 +1/2*3 +1/3*4 +1/4*5 +1/5*6 +1/6*7 +1/7*8 +1/8*9)]
=2*[(1/1-1/2)+(1/2-1/3)+(1/3-1/4)+(1/4-1/5)+(1/5-1/6)+(1/6-1/7)+(1/7-1/8)+(1/8-1/9)]
=2*[1+(-1/2+1/2)+(-1/3+1/3)……+(-1/8+1/8)-1/9]
=2*8/9
=16/9
谁能告诉我这是不是列项消除法?
为什么前面的第一步要变成2*………?
后面的基本都理解了,就是前面的,
黑色ff球1年前1
fuxianhua 共回答了13个问题 | 采纳率84.6%
这就是裂项法
只有提取一个2出来,各式子的分母才能变成n(n+1)的形式呀!
这样才能够裂项,根据1/n(n+1)=1/n-1/(n+1),就可以消去其他项了.
(1+2/3+2+3/4+3+4/5+4+5/6+5+6/7+6+7/8)/(3+1/3+5+2/4+7+3/5+9+4
(1+2/3+2+3/4+3+4/5+4+5/6+5+6/7+6+7/8)/(3+1/3+5+2/4+7+3/5+9+4/6+11+5/7+13+6/8)=?
要有详细计算过程.麻烦各位大神了,谢谢.
(注:1+2/3=1又2分之3,以此类推)
时间de尾巴1年前2
陈阿珠 共回答了15个问题 | 采纳率93.3%
=1/2
原式=(1+2+3+4+5+6+1-1/3+1-1/4+1-1/5+1-1/6+1-1/7+1-1/8)/
(3+5+7+9+11+13+1-2/3+1-2/4=1-2/5+1-2/6+1-2/7+1-2/8)
=(27-1/3-1/4-1/5-1/6-1/7-1/8)/
(54-2/3-2/4-2/5-2/6-2/7-2/8)
=1/2
(1/3+1/5+1/7)*(1/5+1/7+1/9)-(1/3+1/5+1/7+1/9)*(1/5+1/7)=?
找人来的1年前1
cgxqyx 共回答了17个问题 | 采纳率76.5%
原式=(1/3+1/5+1/7)*(1/5+1/7+1/9)-(1/3+1/5+1/7)(1/5+1/7)-1/9*(1/5+1/7)
=(1/3+1/5+1/7)*(1/5+1/7+1/9-1/5-1/7)-1/9(1/5+1/7)
=(1/3+1/5+1/7)*(1/9)-1/9(1/5+1/7)
=1/9*(1/3+1/5+1/7-1/5-1/7)
=1/9*1/3=1/27