multiplication/x4/hard · 套题 4
20 problems
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1
8 × 9
=
2
7 × 8
=
3
10 × 1
=
4
8 × 6
=
5
8 × 10
=
6
8 × 8
=
7
1 × 2
=
8
7 × 4
=
9
3 × 7
=
10
1 × 1
=
11
7 × 6
=
12
3 × 5
=
13
9 × 8
=
14
8 × 6
=
15
2 × 9
=
16
6 × 8
=
17
6 × 7
=
18
5 × 3
=
19
8 × 4
=
20
6 × 2
=