Reken de erbijsom en erafsom tot 1.000 uit
In de mix
|
1.
279 – 270 =
1
2
9
3
|
2.
41 – 0 =
2
41
4
3
|
3.
727 + 272 =
3
4
999
2
|
4.
379 + 357 =
3
4
736
2
|
|
5.
74 – 9 =
4
65
3
2
|
6.
436 + 145 =
2
3
581
4
|
7.
265 + 323 =
3
2
4
588
|
8.
259 + 285 =
3
4
2
544
|
|
9.
550 – 419 =
4
2
3
131
|
10.
713 + 228 =
3
2
4
941
|
11.
682 + 204 =
3
886
4
2
|
12.
357 + 292 =
4
649
2
3
|
|
13.
60 + 343 =
4
403
3
2
|
14.
492 + 69 =
561
2
3
4
|
15.
302 + 73 =
375
3
4
2
|
16.
663 – 66 =
2
3
597
4
|
|
17.
742 + 96 =
838
2
3
4
|
18.
969 + 12 =
981
2
3
4
|
19.
799 – 605 =
4
2
3
194
|
20.
202 + 460 =
662
4
3
2
|