Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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