|
1.
× 4 = 28
1
6
7
2
|
2.
× 4 = 4
10
4
1
7
|
3.
× 4 = 16
10
8
7
4
|
4.
× 4 = 40
10
5
6
7
|
|
5.
× 4 = 20
8
1
5
9
|
6.
× 4 = 20
1
7
5
8
|
7.
× 4 = 16
5
7
4
10
|
8.
× 4 = 12
6
3
2
10
|
|
9.
× 4 = 24
2
6
5
7
|
10.
× 4 = 28
7
4
6
8
|
11.
× 4 = 20
8
9
10
5
|
12.
× 4 = 24
2
6
9
3
|
|
13.
× 4 = 20
6
9
5
10
|
14.
× 4 = 40
1
7
9
10
|
15.
× 4 = 40
10
9
5
6
|
16.
× 4 = 20
3
2
7
5
|
|
17.
× 4 = 4
9
10
2
1
|
18.
× 4 = 16
4
6
8
2
|
19.
× 4 = 24
7
2
6
4
|
20.
× 4 = 36
9
5
4
8
|
|
1.
× 4 = 28
1
6
7
2
|
2.
× 4 = 4
10
4
1
7
|
3.
× 4 = 16
10
8
7
4
|
4.
× 4 = 40
10
5
6
7
|
|
5.
× 4 = 20
8
1
5
9
|
6.
× 4 = 20
1
7
5
8
|
7.
× 4 = 16
5
7
4
10
|
8.
× 4 = 12
6
3
2
10
|
|
9.
× 4 = 24
2
6
5
7
|
10.
× 4 = 28
7
4
6
8
|
11.
× 4 = 20
8
9
10
5
|
12.
× 4 = 24
2
6
9
3
|
|
13.
× 4 = 20
6
9
5
10
|
14.
× 4 = 40
1
7
9
10
|
15.
× 4 = 40
10
9
5
6
|
16.
× 4 = 20
3
2
7
5
|
|
17.
× 4 = 4
9
10
2
1
|
18.
× 4 = 16
4
6
8
2
|
19.
× 4 = 24
7
2
6
4
|
20.
× 4 = 36
9
5
4
8
|