Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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