Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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