Oefen de erafsommen tot 100

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

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