Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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