Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
232 – 119 =
2
113
|
2.
469 + 45 =
514
2
|
3.
276 + 175 =
451
2
|
4.
581 – 527 =
2
54
|
|
5.
624 + 166 =
790
2
|
6.
239 – 231 =
8
1
|
7.
672 + 188 =
860
2
|
8.
518 – 338 =
2
180
|
|
9.
640 + 18 =
2
658
|
10.
94 + 490 =
2
584
|
11.
702 – 270 =
2
432
|
12.
684 + 272 =
956
2
|
|
13.
482 + 347 =
829
2
|
14.
134 + 759 =
2
893
|
15.
448 + 466 =
2
914
|
16.
876 – 46 =
830
2
|
|
17.
130 + 56 =
186
2
|
18.
994 + 5 =
2
999
|
19.
132 + 276 =
2
408
|
20.
227 – 37 =
190
2
|