Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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