Oefen de erbijsommen tot 100

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

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