Reken de erafsom tot 100 uit

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

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