Oefen de erbijsom en erafsom tot 1.000
In de mix
|
1.
880 + 98 =
978
2
|
2.
996 – 95 =
2
901
|
3.
411 – 302 =
2
109
|
4.
929 – 435 =
2
494
|
|
5.
432 – 365 =
2
67
|
6.
421 + 105 =
526
2
|
7.
650 – 588 =
2
62
|
8.
475 – 154 =
2
321
|
|
9.
795 + 26 =
2
821
|
10.
132 – 77 =
55
2
|
11.
479 + 363 =
842
2
|
12.
371 – 111 =
2
260
|
|
13.
950 – 654 =
296
2
|
14.
437 – 364 =
2
73
|
15.
611 – 104 =
507
2
|
16.
279 + 8 =
2
287
|
|
17.
847 – 69 =
2
778
|
18.
857 – 628 =
229
2
|
19.
756 – 201 =
555
2
|
20.
984 – 472 =
2
512
|