Rekensommen met eraf tot 20

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

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