Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
283 + 593 =
876
2
|
2.
992 – 238 =
2
754
|
3.
219 + 490 =
709
2
|
4.
557 – 96 =
2
461
|
|
5.
809 + 145 =
2
954
|
6.
641 – 459 =
182
2
|
7.
620 + 12 =
632
2
|
8.
649 – 106 =
543
2
|
|
9.
448 – 402 =
46
2
|
10.
432 + 317 =
2
749
|
11.
977 + 9 =
2
986
|
12.
867 – 92 =
2
775
|
|
13.
896 – 783 =
113
2
|
14.
766 – 130 =
636
2
|
15.
264 – 218 =
2
46
|
16.
967 – 926 =
41
2
|
|
17.
909 – 514 =
395
2
|
18.
740 – 170 =
2
570
|
19.
905 – 352 =
2
553
|
20.
895 – 94 =
2
801
|