Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
985 – 964 =
21
2
|
2.
246 + 57 =
2
303
|
3.
524 + 114 =
638
2
|
4.
218 + 744 =
962
2
|
|
5.
928 + 18 =
946
2
|
6.
192 – 155 =
2
37
|
7.
159 + 696 =
2
855
|
8.
941 – 85 =
856
2
|
|
9.
220 + 571 =
791
2
|
10.
23 – 0 =
23
2
|
11.
651 + 2 =
653
2
|
12.
750 + 118 =
868
2
|
|
13.
213 + 490 =
703
2
|
14.
435 + 134 =
569
2
|
15.
96 – 65 =
31
2
|
16.
718 – 16 =
2
702
|
|
17.
435 + 450 =
885
2
|
18.
671 – 241 =
2
430
|
19.
661 – 198 =
463
2
|
20.
958 – 59 =
2
899
|