Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
702 – 483 =
219
2
|
2.
984 + 15 =
2
999
|
3.
711 – 453 =
258
2
|
4.
829 – 633 =
2
196
|
|
5.
880 – 293 =
587
2
|
6.
270 – 8 =
2
262
|
7.
2 + 472 =
2
474
|
8.
173 – 15 =
158
2
|
|
9.
450 + 89 =
539
2
|
10.
544 + 50 =
594
2
|
11.
290 + 568 =
858
2
|
12.
405 + 150 =
555
2
|
|
13.
822 + 153 =
2
975
|
14.
381 – 59 =
2
322
|
15.
416 – 262 =
2
154
|
16.
34 + 295 =
2
329
|
|
17.
600 + 211 =
811
2
|
18.
140 – 112 =
28
2
|
19.
381 – 234 =
2
147
|
20.
33 – 5 =
2
28
|