Oefen de erbijsommen tot 100

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

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