叔叔阿姨帮一下:1234567=50
叔叔阿姨帮一下:1234567=50
请在等号左边添上运算符号,使算式相等。有多少答案?
参考答案:共有125个算式:
12-34+5+67=50,1*2*(3-45+67)=50,(1+2)*(34+5)-67=50,(1-2+345+6)/7=50
12*(3-4)-5+67=50,12/(3-4)-5+67=50,12/3/4+56-7=50,12/3+45-6+7=50
12+34+5+6-7=50,123+4-(5+6)*7=50,(1-2)*(3*4+5)+67=50,(1-2)*(3*4+5-67)=50
(1-2)*3*4-5+67=50,1+(2+3-4)*56-7=50,1+(2+3-4)*(56-7)=50,(1+2*(3+4/56))*7=50
1-2-3*4+56+7=50,1-2*(3+4)+56+7=50,(1-2)*3+4+56-7=50,(1-2)*(3-4)+56-7=50
(1-2)*(3-4-56+7)=50,(1-2)*(3-4-56)-7=50,(1-2)/(3-4)+56-7=50,1*2+3-4+56-7=50
1*(2+3)-4+56-7=50,1*(2+3-4)+56-7=50,1*(2+3-4+56)-7=50,1*(2+3-4+56-7)=50
1/(2+3-4)+56-7=50,1+2+3+45+6-7=50,(1-2*3-45)*(6-7)=50,(1-2*3-45)/(6-7)=50
1*2+3-45*(6-7)=50,1*(2+3)-45*(6-7)=50,1*(2+3-45*(6-7))=50,1*2+3-45/(6-7)=50
1*(2+3)-45/(6-7)=50,1*(2+3-45/(6-7))=50,1*2-(3+45)*(6-7)=50,1*(2-(3+45)*(6-7))=50
1*2-(3+45)/(6-7)=50,1*(2-(3+45)/(6-7))=50,1*2*3+45+6-7=50,1*(2*3+45)+6-7=50
1*(2*3+45+6)-7=50,1*(2*3+45+6-7)=50,1/2-3+45/6*7=50,1*2*34-5-6-7=50
1*(2*34-5)-6-7=50,1*(2*34-5-6)-7=50,1*(2*34-5-6-7)=50,1-23+4*(5+6+7)=50
1*23+4+5*6-7=50,1*(23+4)+5*6-7=50,1*(23+4+5*6)-7=50,1*(23+4+5*6-7)=50
12+3+(4-5+6)*7=50,12+3*(4+5+6)-7=50,12-3+4+5*6+7=50,12-3+4-5+6*7=50
(12*3+4)/5+6*7=50,12*3-4+5+6+7=50,12*(3-(4-5)/6*7)=50,12*((3-4*5)/6+7)=50
12*(3*4-5/6-7)=50,1+2+3*4*5-6-7=50,1+2-(3-4)*5+6*7=50,1+2-(3-4)*(5+6*7)=50
1+(2-(3-4)*5)*6+7=50,1+((2-3)*4+5+6)*7=50,1+((2-3)*(4-5)+6)*7=50,1+(2-3)*(4-5-6)*7=50
1+((2-3)/(4-5)+6)*7=50,(1+2)*3+4+5*6+7=50,(1+2)*3+4-5+6*7=50,1+(2*3+4)*5+6-7=50
1+2*3-4+5+6*7=50,1+(2*3-4+5)*6+7=50,(1+2)*(3*4+5)+6-7=50,1+2*(3*(4+5)-6)+7=50
(1+2*3)*(4+5)-6-7=50,1+(2/(3+4-5)+6)*7=50,(1+2)/3-(4-5-6)*7=50,1-(2+3*(4-5)-6)*7=50
1-(2+3/(4-5)-6)*7=50,1-(2-3+(4-5)*6)*7=50,1-((2-3-4)/5-6)*7=50,1-(2-3*(4+5-6))*7=50
1-(2-3*4)*5+6-7=50,1-2*(3-4)+5+6*7=50,1-(2*(3-4)-5)*6+7=50,1-2*3*(4-5-6)+7=50
(1-2*(3/4-5))*6-7=50,1-2/(3-4)+5+6*7=50,1-(2/(3-4)-5)*6+7=50,1*2+(3+4)*5+6+7=50
1*(2+(3+4)*5)+6+7=50,1*(2+(3+4)*5+6)+7=50,1*(2+(3+4)*5+6+7)=50,(1*2+3)*(4+5-6+7)=50
1*(2+3)*(4+5-6+7)=50,1*2+3*4*(5+6-7)=50,1*(2+3*4*(5+6-7))=50,1*2-3+4+5+6*7=50
1*(2-3)+4+5+6*7=50,1*(2-3+4)+5+6*7=50,1*(2-3+4+5)+6*7=50,1*(2-3+4+5+6*7)=50
1*2-3+4*(5+6)+7=50,1*(2-3)+4*(5+6)+7=50,1*(2-3+4*(5+6))+7=50,1*(2-3+4*(5+6)+7)=50
(1*2-3*4)*5*(6-7)=50,1*(2-3*4)*5*(6-7)=50,(1*2-3*4)*5/(6-7)=50,1*(2-3*4)*5/(6-7)=50
1*2*(3+4+5+6+7)=50,1*2*(3-4+5)+6*7=50,1*(2*(3-4+5)+6*7)=50,1*2*(3-4*5+6*7)=50
(1/2+3*4)*(5+6-7)=50,1/(2-3)+4+5+6*7=50,1/(2-3)+4*(5+6)+7=50,(1/2-3)*4*5*(6-7)=50
(1/2-3)*4*5/(6-7)=50