Oefen de erbijsommen tot 100

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

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