Welk getal uit de tafelsom tot en met 10 ontbreekt?

Tafels
1.
4 × 4 =
36
40
16
20
2.
8 × 7 =
7
28
63
56
3.
3 × 6 =
42
18
6
48
4.
10 × 7 =
70
35
28
21
5.
4 × 3 =
9
18
12
3
6.
9 × 5 =
45
25
10
30
7.
10 × 4 =
20
8
40
24
8.
7 × 2 =
12
18
14
8
9.
5 × 1 =
10
1
2
5
10.
1 × 2 =
14
8
2
18
11.
8 × 1 =
3
5
9
8
12.
9 × 8 =
56
16
72
8
13.
9 × 1 =
8
9
1
6
14.
7 × 1 =
10
9
7
4
15.
1 × 5 =
35
25
5
10
16.
3 × 7 =
28
21
63
56
17.
9 × 10 =
100
90
50
80
18.
2 × 8 =
48
32
16
64
19.
7 × 3 =
9
18
27
21
20.
2 × 9 =
90
18
63
72

Welk getal uit de tafelsom tot en met 10 ontbreekt?
| ANTWOORDEN

Tafels
1.
4 × 4 =
36
40
16
20
2.
8 × 7 =
7
28
63
56
3.
3 × 6 =
42
18
6
48
4.
10 × 7 =
70
35
28
21
5.
4 × 3 =
9
18
12
3
6.
9 × 5 =
45
25
10
30
7.
10 × 4 =
20
8
40
24
8.
7 × 2 =
12
18
14
8
9.
5 × 1 =
10
1
2
5
10.
1 × 2 =
14
8
2
18
11.
8 × 1 =
3
5
9
8
12.
9 × 8 =
56
16
72
8
13.
9 × 1 =
8
9
1
6
14.
7 × 1 =
10
9
7
4
15.
1 × 5 =
35
25
5
10
16.
3 × 7 =
28
21
63
56
17.
9 × 10 =
100
90
50
80
18.
2 × 8 =
48
32
16
64
19.
7 × 3 =
9
18
27
21
20.
2 × 9 =
90
18
63
72