Rekensommen met eraf tot 20

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

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