Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
214 – 67 =
2
147
|
2.
815 + 83 =
898
2
|
3.
711 – 632 =
2
79
|
4.
726 – 674 =
52
2
|
|
5.
658 – 277 =
2
381
|
6.
357 – 293 =
64
2
|
7.
583 + 89 =
672
2
|
8.
400 + 199 =
599
2
|
|
9.
546 – 51 =
2
495
|
10.
611 – 537 =
2
74
|
11.
95 + 385 =
480
2
|
12.
979 – 596 =
383
2
|
|
13.
351 – 244 =
107
2
|
14.
469 + 459 =
928
2
|
15.
825 – 754 =
71
2
|
16.
287 – 76 =
2
211
|
|
17.
936 – 432 =
2
504
|
18.
23 + 106 =
2
129
|
19.
355 – 132 =
223
2
|
20.
923 + 27 =
950
2
|