Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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