Oefen de erafsommen tot 100

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

Oefen de erafsommen tot 100
| ANTWOORDEN

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