按要求写算式
1 1 1 1
2 × 3 =
2 - 3
1 1 1 1
5 × 6 = 5 - 6
2 2 2 2
7 × 9 =
7 - 9
2 × 2 = 2 - 2
11 13 11 13
3 × 3 3 3
5 8 = 5 - 8
3 × 3 3 3
7 10 = 7 - 10
4 4 4 4
5 × 9 =
5 - 9
4 × 4 = 4 4
7 11 7 11
2 × 2 = 2 2
9 11 9 11
5 5 5 5
1 1 1 1
2 × 3 =
2 - 3
1 1 1 1
5 × 6 = 5 - 6
2 2 2 2
7 × 9 =
7 - 9
2 × 2 = 2 - 2
11 13 11 13
3 × 3 3 3
5 8 = 5 - 8
3 × 3 3 3
7 10 = 7 - 10
4 4 4 4
5 × 9 =
5 - 9
4 × 4 = 4 4
7 11 7 11
2 × 2 = 2 2
9 11 9 11
5 5 5 5