Erafsommen tot 20 maken

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

Erafsommen tot 20 maken
| ANTWOORDEN

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