Oplossen van erafsommen tot 100

Erafsommen
1.
20
-
15
=
10
15
25
5
2.
45
-
30
=
15
5
10
20
3.
75
-
0
=
65
75
85
70
4.
100
-
20
=
80
90
75
85
5.
10
-
10
=
15
0
5
20
6.
45
-
20
=
30
20
25
35
7.
60
-
45
=
5
15
20
25
8.
70
-
5
=
75
55
60
65
9.
35
-
30
=
25
20
15
5
10.
55
-
20
=
40
25
35
30
11.
15
-
0
=
15
5
20
25
12.
15
-
10
=
20
15
10
5
13.
20
-
10
=
0
5
10
20
14.
75
-
45
=
35
30
40
20
15.
95
-
45
=
60
40
55
50
16.
40
-
10
=
35
25
30
40
17.
40
-
0
=
35
50
40
30
18.
35
-
0
=
35
30
25
40
19.
25
-
25
=
0
15
20
5
20.
35
-
10
=
35
20
30
25
21.
75
-
5
=
80
65
75
70
© JuniorEinstein.nl
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Oplossen van erafsommen tot 100
| ANTWOORDEN

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