Oefen de erbijsommen tot 100

Erbijsommen
1.
30
+
55
=
2.
25
+
35
=
3.
30
+
35
=
4.
20
+
55
=
5.
15
+
45
=
6.
35
+
55
=
7.
0
+
45
=
8.
10
+
25
=
9.
5
+
65
=
10.
0
+
100
=
11.
30
+
50
=
12.
10
+
55
=
13.
10
+
75
=
14.
40
+
45
=
15.
0
+
95
=
16.
10
+
15
=
17.
15
+
35
=
18.
20
+
25
=
19.
5
+
60
=
20.
35
+
40
=
21.
20
+
80
=
22.
35
+
55
=
23.
5
+
30
=
24.
25
+
60
=
25.
25
+
55
=
26.
25
+
45
=
27.
5
+
90
=
28.
30
+
55
=
29.
10
+
10
=
30.
40
+
55
=
31.
20
+
55
=
32.
10
+
60
=
33.
20
+
75
=
34.
0
+
95
=
35.
5
+
70
=
36.
5
+
50
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

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