Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
218 + 313 =
2
531
|
2.
543 + 162 =
2
705
|
3.
751 – 646 =
2
105
|
4.
347 – 299 =
48
2
|
|
5.
650 – 199 =
451
2
|
6.
350 + 612 =
2
962
|
7.
969 – 253 =
2
716
|
8.
566 – 461 =
2
105
|
|
9.
479 – 436 =
43
2
|
10.
31 + 929 =
960
2
|
11.
595 – 212 =
2
383
|
12.
845 + 110 =
955
2
|
|
13.
865 + 11 =
2
876
|
14.
530 + 278 =
808
2
|
15.
499 – 230 =
2
269
|
16.
662 – 461 =
201
2
|
|
17.
62 + 400 =
2
462
|
18.
451 – 298 =
2
153
|
19.
690 – 164 =
526
2
|
20.
518 – 159 =
359
2
|