Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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