Oplossen van erafsommen tot 100

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

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