文档介绍：2+3=
3+1=
2+2=
1+1=
1+3=
3-2=
4-1=
2-1=
4-2=
5-1=
5-2=
4-3=
5-5=
4-4=
1+( )=4
1+( )=5
2+( )=3
1+( )=2
3+( )=5
2+( )=4
3-0=
0+0=
4-0=
5-4=
0+2=
1-1=
2-0=
5-2=
3+1=
5-4=
3+0=
4-4=
5-3=
2+3=
0+5=
4+1=
4-2=
4-3=
4-4=
0-0=
3-□=3
0+□=0
4-□=0
5-□=4
0+□=2
1-□=1
2-□=2
5-□=2
3+□=4
5-□=4
3+□=3
4-□=4
5-□=3
2+□=5
0+□=5
4+□=5
4-□=2
4-□=3
4-□=4
0-□=0
5〇6
5〇7
6〇7
7〇6
1〇0
4〇3
3〇2
4〇5
7〇6
7〇5
0〇0
5〇5
4〇4
7〇3
4〇6
4〇3+1
5〇4+1
4〇3+2
3+2〇1+4 3+1〇1+3
6
( )( )
6
( ) 2
6
3 ( )
6
5 ( )
( )
1 3
6
4 ( )
6
1 ( )
5
1 ( )
5
2 ( )
( )
3
3
( ) 1
5
4 ( )
5
( ) 2
7
( )( )
6
( ) 5
( )
4 1
( )
2 5
( )
1 6
( )
4 3
7
( )
7-3=
1+6=
6-5=
2+4=
4+3=
6-1=
4-2=
7-4=
4+2=
3+4=
7-5=
5-0=
2+4=
7-4=
1+6=
6-3=
7-3=
2+5=
6-4=
5-3=
3+□=7
1+□=6
5+□=6
4+□=6
3+□=4
6+□=7
□+3=7
4+□=7
2+□=4
3+□=4
2+□=7
5+□=7
0+□=5
2+□=6
4+□=5
1+□=6
3+□=6
3+□=4
5-□=2
6-□=4
7+2=
2+7=
9-2=
9-7=
5+3=
3+5=
8-3=
8-5=
2+6=
6+2=
8-2=
8-6=
4+5=
5+4=
9-4=
9-5=
3+6=
6+3=
9-3=
9-6=
用数字摆出几种算式
2 5 7 0
6 3 1 4
□+□=□
□+□=□
□+□=□
□+□=□
□-□=□
□-□=□
□-□=□
□-□=□