Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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