Rekensommen met eraf tot 20

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

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