Oefen de erbijsommen tot 100

Erbijsommen
1.
10
+
80
=
2.
20
+
30
=
3.
10
+
15
=
4.
15
+
85
=
5.
40
+
50
=
6.
15
+
50
=
7.
35
+
45
=
8.
5
+
25
=
9.
10
+
50
=
10.
10
+
35
=
11.
5
+
90
=
12.
10
+
70
=
13.
0
+
85
=
14.
10
+
45
=
15.
40
+
50
=
16.
15
+
70
=
17.
5
+
15
=
18.
15
+
50
=
19.
15
+
85
=
20.
30
+
35
=
21.
0
+
90
=
22.
10
+
40
=
23.
0
+
95
=
24.
10
+
85
=
25.
5
+
65
=
26.
25
+
35
=
27.
25
+
60
=
28.
20
+
20
=
29.
0
+
65
=
30.
10
+
80
=
31.
0
+
75
=
32.
20
+
60
=
33.
10
+
65
=
34.
0
+
95
=
35.
10
+
80
=
36.
40
+
55
=
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Oefen de erbijsommen tot 100
| ANTWOORDEN

Erbijsommen
1.
10
+
80
=
90
2.
20
+
30
=
50
3.
10
+
15
=
25
4.
15
+
85
=
100
5.
40
+
50
=
90
6.
15
+
50
=
65
7.
35
+
45
=
80
8.
5
+
25
=
30
9.
10
+
50
=
60
10.
10
+
35
=
45
11.
5
+
90
=
95
12.
10
+
70
=
80
13.
0
+
85
=
85
14.
10
+
45
=
55
15.
40
+
50
=
90
16.
15
+
70
=
85
17.
5
+
15
=
20
18.
15
+
50
=
65
19.
15
+
85
=
100
20.
30
+
35
=
65
21.
0
+
90
=
90
22.
10
+
40
=
50
23.
0
+
95
=
95
24.
10
+
85
=
95
25.
5
+
65
=
70
26.
25
+
35
=
60
27.
25
+
60
=
85
28.
20
+
20
=
40
29.
0
+
65
=
65
30.
10
+
80
=
90
31.
0
+
75
=
75
32.
20
+
60
=
80
33.
10
+
65
=
75
34.
0
+
95
=
95
35.
10
+
80
=
90
36.
40
+
55
=
95
© JuniorEinstein.nl
Online oefenen  |   Educatieve boeken  |   Werkbladen  |   Educatieve materialen