Erafsommen oplossen tot 20

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

Erafsommen oplossen tot 20
| ANTWOORDEN

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