Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
133 – 28 =
105
2
|
2.
138 – 82 =
56
2
|
3.
603 + 272 =
2
875
|
4.
358 – 285 =
2
73
|
|
5.
448 – 212 =
236
2
|
6.
363 + 182 =
545
2
|
7.
923 – 257 =
666
2
|
8.
677 + 25 =
2
702
|
|
9.
600 + 183 =
2
783
|
10.
703 – 51 =
2
652
|
11.
255 + 729 =
984
2
|
12.
452 – 311 =
2
141
|
|
13.
893 – 305 =
588
2
|
14.
195 – 24 =
2
171
|
15.
785 + 195 =
980
2
|
16.
828 + 124 =
952
2
|
|
17.
159 – 98 =
61
2
|
18.
256 – 99 =
2
157
|
19.
953 + 20 =
973
2
|
20.
738 + 10 =
2
748
|