Oefen de erbijsommen tot 100

Erbijsommen
1.
20
+
80
=
2.
5
+
65
=
3.
15
+
85
=
4.
10
+
75
=
5.
30
+
55
=
6.
0
+
95
=
7.
25
+
75
=
8.
30
+
70
=
9.
15
+
70
=
10.
0
+
90
=
11.
5
+
80
=
12.
10
+
50
=
13.
0
+
100
=
14.
10
+
85
=
15.
20
+
60
=
16.
15
+
45
=
17.
20
+
75
=
18.
30
+
40
=
19.
10
+
45
=
20.
45
+
45
=
21.
15
+
50
=
22.
30
+
65
=
23.
0
+
80
=
24.
10
+
30
=
25.
25
+
60
=
26.
0
+
85
=
27.
25
+
50
=
28.
30
+
45
=
29.
0
+
100
=
30.
25
+
30
=
31.
15
+
85
=
32.
30
+
60
=
33.
5
+
90
=
34.
0
+
95
=
35.
30
+
65
=
36.
5
+
70
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

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