Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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