Reken de erafsom tot 20 uit

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

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