Oefen de erafsommen tot 100

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

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