Rekensommen met eraf tot 20

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

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