Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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