Rekensommen met eraf tot 20

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

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