Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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