Oplossen van erafsommen tot 100

Erafsommen
1.
100
-
90
=
20
0
15
10
2.
100
-
50
=
60
50
45
55
3.
75
-
50
=
25
15
20
35
4.
15
-
0
=
10
15
5
25
5.
45
-
30
=
15
20
5
25
6.
55
-
35
=
20
15
30
10
7.
5
-
5
=
10
5
15
0
8.
85
-
55
=
30
20
35
25
9.
50
-
45
=
10
15
5
20
10.
40
-
10
=
30
25
20
40
11.
75
-
55
=
20
15
30
25
12.
65
-
0
=
75
70
55
65
13.
65
-
20
=
55
50
45
35
14.
10
-
5
=
15
5
20
25
15.
5
-
0
=
5
15
25
10
16.
45
-
20
=
25
35
20
15
17.
90
-
45
=
45
55
50
35
18.
100
-
65
=
40
30
35
45
19.
55
-
10
=
45
55
35
40
20.
100
-
20
=
75
80
90
70
21.
80
-
20
=
55
65
70
60
© JuniorEinstein.nl
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Oplossen van erafsommen tot 100
| ANTWOORDEN

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