Erafsommen tot 20 maken

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

Erafsommen tot 20 maken
| ANTWOORDEN

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