Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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