Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
656 – 236 =
2
420
|
2.
39 – 5 =
34
2
|
3.
408 + 388 =
2
796
|
4.
726 – 609 =
117
2
|
|
5.
556 + 61 =
617
2
|
6.
109 + 669 =
778
2
|
7.
399 + 298 =
697
2
|
8.
506 – 287 =
2
219
|
|
9.
996 + 3 =
2
999
|
10.
601 + 23 =
2
624
|
11.
618 – 24 =
594
2
|
12.
69 – 33 =
2
36
|
|
13.
336 – 310 =
26
2
|
14.
557 + 272 =
2
829
|
15.
604 + 328 =
932
2
|
16.
976 – 568 =
408
2
|
|
17.
961 + 32 =
2
993
|
18.
423 + 550 =
2
973
|
19.
442 + 275 =
2
717
|
20.
701 – 40 =
661
2
|