Maak de erafsom tot 20

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

Maak de erafsom tot 20
| ANTWOORDEN

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