Reken de erafsommen tot 100 uit

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

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