Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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