Oefen de erafsommen tot 100

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

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