Maak de erafsom tot 20

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

Maak de erafsom tot 20
| ANTWOORDEN

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