Oefen de erbijsommen tot 100

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

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