Rekensommen met eraf tot 20

Erafsommen
1.
10
–
4
=
2.
17
–
6
=
3.
20
–
0
=
4.
10
–
0
=
5.
4
–
2
=
6.
14
–
13
=
7.
3
–
1
=
8.
5
–
4
=
9.
11
–
3
=
10.
6
–
0
=
11.
20
–
18
=
12.
11
–
8
=
13.
8
–
5
=
14.
6
–
2
=
15.
10
–
1
=
16.
17
–
6
=
17.
4
–
4
=
18.
17
–
10
=
19.
10
–
5
=
20.
17
–
17
=
21.
13
–
1
=
22.
6
–
0
=
23.
6
–
2
=
24.
11
–
1
=
25.
10
–
3
=
26.
6
–
1
=
27.
18
–
15
=
28.
14
–
3
=
29.
8
–
2
=
30.
16
–
11
=
31.
18
–
8
=
32.
12
–
4
=
33.
1
–
1
=
34.
4
–
3
=
35.
9
–
5
=
36.
6
–
5
=
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Rekensommen met eraf tot 20
| ANTWOORDEN

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