Oefen de erbijsommen tot 100

Erbijsommen
1.
15
+
70
=
2.
25
+
55
=
3.
20
+
40
=
4.
0
+
30
=
5.
30
+
60
=
6.
35
+
55
=
7.
0
+
85
=
8.
10
+
90
=
9.
20
+
50
=
10.
25
+
50
=
11.
30
+
50
=
12.
0
+
100
=
13.
45
+
50
=
14.
5
+
45
=
15.
20
+
25
=
16.
5
+
65
=
17.
30
+
60
=
18.
35
+
55
=
19.
5
+
85
=
20.
10
+
40
=
21.
25
+
75
=
22.
5
+
95
=
23.
15
+
35
=
24.
0
+
45
=
25.
5
+
90
=
26.
40
+
55
=
27.
5
+
65
=
28.
15
+
35
=
29.
45
+
50
=
30.
5
+
75
=
31.
35
+
35
=
32.
15
+
75
=
33.
15
+
30
=
34.
0
+
95
=
35.
15
+
65
=
36.
25
+
35
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

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