Reken de erafsommen tot 100 uit

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

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