Erafsommen tot 20 maken

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

Erafsommen tot 20 maken
| ANTWOORDEN

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