Rekensommen met eraf tot 100

Erafsommen
1.
60
–
60
=
2.
40
–
30
=
3.
20
–
10
=
4.
90
–
50
=
5.
60
–
35
=
6.
90
–
55
=
7.
80
–
40
=
8.
35
–
25
=
9.
20
–
15
=
10.
80
–
10
=
11.
5
–
5
=
12.
35
–
25
=
13.
15
–
10
=
14.
15
–
10
=
15.
15
–
0
=
16.
70
–
35
=
17.
10
–
5
=
18.
10
–
10
=
19.
10
–
10
=
20.
100
–
100
=
21.
50
–
45
=
22.
85
–
30
=
23.
95
–
85
=
24.
85
–
10
=
25.
55
–
15
=
26.
100
–
35
=
27.
50
–
40
=
28.
50
–
15
=
29.
15
–
0
=
30.
15
–
15
=
31.
5
–
5
=
32.
55
–
10
=
33.
80
–
30
=
34.
75
–
40
=
35.
40
–
0
=
36.
90
–
20
=
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Rekensommen met eraf tot 100
| ANTWOORDEN

Erafsommen
1.
60
–
60
=
0
2.
40
–
30
=
10
3.
20
–
10
=
10
4.
90
–
50
=
40
5.
60
–
35
=
25
6.
90
–
55
=
35
7.
80
–
40
=
40
8.
35
–
25
=
10
9.
20
–
15
=
5
10.
80
–
10
=
70
11.
5
–
5
=
0
12.
35
–
25
=
10
13.
15
–
10
=
5
14.
15
–
10
=
5
15.
15
–
0
=
15
16.
70
–
35
=
35
17.
10
–
5
=
5
18.
10
–
10
=
0
19.
10
–
10
=
0
20.
100
–
100
=
0
21.
50
–
45
=
5
22.
85
–
30
=
55
23.
95
–
85
=
10
24.
85
–
10
=
75
25.
55
–
15
=
40
26.
100
–
35
=
65
27.
50
–
40
=
10
28.
50
–
15
=
35
29.
15
–
0
=
15
30.
15
–
15
=
0
31.
5
–
5
=
0
32.
55
–
10
=
45
33.
80
–
30
=
50
34.
75
–
40
=
35
35.
40
–
0
=
40
36.
90
–
20
=
70
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Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen