Oefen de erbijsommen tot 100

Erbijsommen
1.
25
+
75
=
2.
10
+
90
=
3.
0
+
90
=
4.
10
+
60
=
5.
10
+
30
=
6.
35
+
40
=
7.
10
+
45
=
8.
0
+
75
=
9.
30
+
50
=
10.
10
+
40
=
11.
5
+
55
=
12.
45
+
50
=
13.
0
+
15
=
14.
15
+
60
=
15.
45
+
55
=
16.
5
+
35
=
17.
10
+
40
=
18.
5
+
50
=
19.
15
+
30
=
20.
10
+
85
=
21.
5
+
40
=
22.
15
+
50
=
23.
40
+
40
=
24.
5
+
60
=
25.
5
+
50
=
26.
0
+
95
=
27.
30
+
65
=
28.
15
+
25
=
29.
15
+
35
=
30.
35
+
40
=
31.
10
+
10
=
32.
25
+
35
=
33.
25
+
30
=
34.
5
+
95
=
35.
5
+
90
=
36.
5
+
40
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
25
+
75
=
100
2.
10
+
90
=
100
3.
0
+
90
=
90
4.
10
+
60
=
70
5.
10
+
30
=
40
6.
35
+
40
=
75
7.
10
+
45
=
55
8.
0
+
75
=
75
9.
30
+
50
=
80
10.
10
+
40
=
50
11.
5
+
55
=
60
12.
45
+
50
=
95
13.
0
+
15
=
15
14.
15
+
60
=
75
15.
45
+
55
=
100
16.
5
+
35
=
40
17.
10
+
40
=
50
18.
5
+
50
=
55
19.
15
+
30
=
45
20.
10
+
85
=
95
21.
5
+
40
=
45
22.
15
+
50
=
65
23.
40
+
40
=
80
24.
5
+
60
=
65
25.
5
+
50
=
55
26.
0
+
95
=
95
27.
30
+
65
=
95
28.
15
+
25
=
40
29.
15
+
35
=
50
30.
35
+
40
=
75
31.
10
+
10
=
20
32.
25
+
35
=
60
33.
25
+
30
=
55
34.
5
+
95
=
100
35.
5
+
90
=
95
36.
5
+
40
=
45
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen