Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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