Question

用加减乘除,不加括号,1,2,3,4,5,6怎样算等于75?

用加减乘除,不加括号,1,2,3,4,5,6怎样算等于75?

Answer 1

共有21个算式：
1*23-4+56=75
1*(23-4)+56=75
1*(23-4+56)=75
1*23-(4-56)=75
1*(23-(4-56))=75
1+23+45+6=75
12+3+4+56=75
12*3+45-6=75
(12+3)*(4-5+6)=75
(12+3)*(4-(5-6))=75
(12-3)*(4+5)-6=75
12*(3/4+5)+6=75
1+2+(3+4+5)*6=75
1+2*(3+4+5*6)=75
(1+2)*(3+4*5)+6=75
(1+2)*3*(4+5)-6=75
(1+2*(3/4+5))*6=75
(1+2*3/4)*5*6=75
(1*2+3)*(4+5+6)=75
1*(2+3)*(4+5+6)=75
(1/2+3+4+5)*6=75

不使用括号的共有4个：
1*23-4+56=75
1+23+45+6=75
12+3+4+56=75
12*3+45-6=75

Answer 2

3*4*6+5-1*2=75

Answer 3

3*4*6*1+5-2=75

Answer 4

3×4×6-2+5-2