Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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