Rekensommen met eraf tot 20

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

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