Oefen de erbijsommen tot 100

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

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