Oefen de erbijsommen tot 100

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

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