Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
59 – 9 =
2
50
|
2.
511 + 53 =
564
2
|
3.
955 + 14 =
2
969
|
4.
441 – 266 =
175
2
|
|
5.
425 + 320 =
2
745
|
6.
660 – 449 =
2
211
|
7.
451 – 84 =
2
367
|
8.
274 + 406 =
680
2
|
|
9.
795 + 87 =
2
882
|
10.
516 + 332 =
848
2
|
11.
72 + 926 =
998
2
|
12.
538 + 319 =
857
2
|
|
13.
206 – 40 =
166
2
|
14.
268 – 203 =
65
2
|
15.
938 – 462 =
476
2
|
16.
336 + 417 =
753
2
|
|
17.
934 – 566 =
368
2
|
18.
30 – 28 =
2
1
|
19.
267 – 120 =
147
2
|
20.
557 – 226 =
331
2
|