Oefen de erbijsommen tot 100

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

Oefen de erbijsommen tot 100
| ANTWOORDEN

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