Reken de erafsom tot 100 uit

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

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