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