例如:4-3-(2-1)=04 3 2 1 =14 3 2 1 =24 3 2 1 =34 3 2 1 =44 3 2 1 =54 3 2 1 =64 3 2 1 =74 3 2 1 =84 3 2 1 =94 3 2 1 =104 3 2 1 =114 3 2 1 =124 3 2 1 =13(用加减乘除的符号套进去)
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例如:4-3-(2-1)=04 3 2 1 =14 3 2 1 =24 3 2 1 =34 3 2 1 =44 3 2 1 =54 3 2 1 =64 3 2 1 =74 3 2 1 =84 3 2 1 =94 3 2 1 =104 3 2 1 =114 3 2 1 =124 3 2 1 =13(用加减乘除的符号套进去)
例如:4-3-(2-1)=0
4 3 2 1 =1
4 3 2 1 =2
4 3 2 1 =3
4 3 2 1 =4
4 3 2 1 =5
4 3 2 1 =6
4 3 2 1 =7
4 3 2 1 =8
4 3 2 1 =9
4 3 2 1 =10
4 3 2 1 =11
4 3 2 1 =12
4 3 2 1 =13
(用加减乘除的符号套进去)
例如:4-3-(2-1)=04 3 2 1 =14 3 2 1 =24 3 2 1 =34 3 2 1 =44 3 2 1 =54 3 2 1 =64 3 2 1 =74 3 2 1 =84 3 2 1 =94 3 2 1 =104 3 2 1 =114 3 2 1 =124 3 2 1 =13(用加减乘除的符号套进去)
(4-3)×(2-1) =1
4-3+2-1 =2
(4-3)×(2+1) =3
4+3-2-1 =4
4+3-2×1 =5
4+3-2+1 =6
(4+3)×(2-1) =7
4+3+2-1 =8
4+3+2×1 =9
4+3+2+1 =10
4×3-2+1 =11
4×3×(2-1) =12
4×3+2-1 =13
4+3-2-1=4
4*3-2-1=9
4*3-2+1=11
4*3+2-1=13
4*(3-2)-1=3
。。。。。。
(4-3)*(2-1)=1
4-3+2-1=2
4-3+(2*1)=3
4+3-2-1=4
4*3÷2-1=5
4*3÷2*1=6
4*3÷2+1=7
4+3+2-1=8
4+3*2-1=9
4+3*2*1=10
4+3*2+1=11
4*3*(2-1)=12
4*3+(2-1)=13
(4 -3 )/(2 -1) =1
4 -(3 -2) -1 =2
(4 -3 +2)* 1 =3
(4 +3)-( 2+ 1) =4
(4 +3)- 2* 1 =5
4 +(3 -2 +1) =6
(4 +3)* (2 -1) =7
4 *((3- 2) +...
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(4 -3 )/(2 -1) =1
4 -(3 -2) -1 =2
(4 -3 +2)* 1 =3
(4 +3)-( 2+ 1) =4
(4 +3)- 2* 1 =5
4 +(3 -2 +1) =6
(4 +3)* (2 -1) =7
4 *((3- 2) +1 )=8
(4 +3 +2)* 1 =9
4 +3 +2 +1 =10
4 *3- 2 +1 =11
4 *3 *(2-1) =12
4 *3 +(2- 1) =13
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