Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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