Reken de erafsom tot 20 uit

Erafsommen
1.
16
–
3
=
2.
16
–
15
=
3.
13
–
0
=
4.
3
–
2
=
5.
12
–
9
=
6.
8
–
1
=
7.
11
–
1
=
8.
7
–
3
=
9.
14
–
9
=
10.
12
–
4
=
11.
4
–
4
=
12.
9
–
9
=
13.
13
–
1
=
14.
9
–
3
=
15.
1
–
1
=
16.
19
–
8
=
17.
13
–
6
=
18.
12
–
7
=
19.
9
–
9
=
20.
9
–
9
=
21.
20
–
1
=
22.
15
–
8
=
23.
3
–
2
=
24.
2
–
0
=
25.
9
–
4
=
26.
17
–
12
=
27.
17
–
6
=
28.
3
–
0
=
29.
12
–
2
=
30.
1
–
0
=
31.
20
–
3
=
32.
4
–
4
=
33.
19
–
13
=
34.
8
–
2
=
35.
1
–
1
=
36.
13
–
7
=
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Reken de erafsom tot 20 uit
| ANTWOORDEN

Erafsommen
1.
16
–
3
=
13
2.
16
–
15
=
1
3.
13
–
0
=
13
4.
3
–
2
=
1
5.
12
–
9
=
3
6.
8
–
1
=
7
7.
11
–
1
=
10
8.
7
–
3
=
4
9.
14
–
9
=
5
10.
12
–
4
=
8
11.
4
–
4
=
0
12.
9
–
9
=
0
13.
13
–
1
=
12
14.
9
–
3
=
6
15.
1
–
1
=
0
16.
19
–
8
=
11
17.
13
–
6
=
7
18.
12
–
7
=
5
19.
9
–
9
=
0
20.
9
–
9
=
0
21.
20
–
1
=
19
22.
15
–
8
=
7
23.
3
–
2
=
1
24.
2
–
0
=
2
25.
9
–
4
=
5
26.
17
–
12
=
5
27.
17
–
6
=
11
28.
3
–
0
=
3
29.
12
–
2
=
10
30.
1
–
0
=
1
31.
20
–
3
=
17
32.
4
–
4
=
0
33.
19
–
13
=
6
34.
8
–
2
=
6
35.
1
–
1
=
0
36.
13
–
7
=
6
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen