Oefen de erafsommen tot 100

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

Oefen de erafsommen tot 100
| ANTWOORDEN

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