Welk getal uit de tafelsom tot en met 10 ontbreekt?
Tafels
|
1.
4 × 1 =
1
7
3
4
|
2.
7 × 3 =
18
21
15
27
|
3.
5 × 10 =
30
80
10
50
|
4.
2 × 7 =
14
56
63
28
|
|
5.
6 × 9 =
54
45
9
72
|
6.
9 × 3 =
27
9
3
30
|
7.
9 × 6 =
54
24
48
42
|
8.
4 × 10 =
70
80
10
40
|
|
9.
7 × 10 =
70
60
40
80
|
10.
8 × 5 =
40
45
25
20
|
11.
5 × 5 =
25
20
45
40
|
12.
2 × 4 =
8
36
32
28
|
|
13.
5 × 4 =
12
8
20
36
|
14.
6 × 7 =
28
49
7
42
|
15.
2 × 8 =
72
16
32
40
|
16.
1 × 10 =
90
10
20
50
|
|
17.
1 × 2 =
10
20
8
2
|
18.
8 × 9 =
9
54
90
72
|
19.
7 × 4 =
24
16
28
12
|
20.
2 × 3 =
6
15
21
27
|