Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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