Erafsommen tot 20 maken

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

Erafsommen tot 20 maken
| ANTWOORDEN

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