Rekensommen met eraf tot 20

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

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