Oefen de erbijsommen tot 100

Erbijsommen
1.
20
+
50
=
2.
15
+
80
=
3.
30
+
40
=
4.
15
+
60
=
5.
0
+
100
=
6.
25
+
45
=
7.
40
+
55
=
8.
10
+
60
=
9.
15
+
80
=
10.
20
+
20
=
11.
30
+
40
=
12.
0
+
35
=
13.
10
+
60
=
14.
10
+
65
=
15.
30
+
50
=
16.
5
+
40
=
17.
15
+
80
=
18.
20
+
35
=
19.
30
+
65
=
20.
25
+
65
=
21.
0
+
80
=
22.
35
+
65
=
23.
0
+
75
=
24.
20
+
80
=
25.
10
+
75
=
26.
0
+
5
=
27.
15
+
30
=
28.
5
+
90
=
29.
40
+
60
=
30.
5
+
90
=
31.
5
+
65
=
32.
10
+
85
=
33.
10
+
75
=
34.
0
+
80
=
35.
5
+
85
=
36.
20
+
40
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

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