Rekensommen met eraf tot 100

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

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