Erafsommen tot 20 maken

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

Erafsommen tot 20 maken
| ANTWOORDEN

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