Reken de erafsom tot 100 uit

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

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