Oefen de erafsommen tot 100

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

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