Oefen de erafsommen tot 20

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

Oefen de erafsommen tot 20
| ANTWOORDEN

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