Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
833 – 576 =
2
257
|
2.
895 + 67 =
962
2
|
3.
407 + 497 =
2
904
|
4.
736 + 125 =
861
2
|
|
5.
80 – 72 =
8
1
|
6.
114 – 54 =
60
2
|
7.
196 + 674 =
2
870
|
8.
137 + 66 =
203
2
|
|
9.
830 + 154 =
984
2
|
10.
426 + 166 =
2
592
|
11.
740 – 133 =
2
607
|
12.
707 + 146 =
2
853
|
|
13.
286 – 84 =
2
202
|
14.
954 – 597 =
357
2
|
15.
546 – 473 =
2
73
|
16.
968 – 907 =
2
61
|
|
17.
594 + 101 =
695
2
|
18.
569 + 110 =
2
679
|
19.
844 – 490 =
354
2
|
20.
374 – 328 =
46
2
|