Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
997 – 546 =
2
451
|
2.
679 – 391 =
288
2
|
3.
453 – 166 =
287
2
|
4.
283 + 34 =
317
2
|
|
5.
611 – 338 =
2
273
|
6.
737 – 78 =
2
659
|
7.
395 – 53 =
2
342
|
8.
25 + 56 =
2
81
|
|
9.
596 + 91 =
2
687
|
10.
665 – 601 =
64
2
|
11.
504 – 258 =
2
246
|
12.
230 + 596 =
826
2
|
|
13.
945 + 20 =
2
965
|
14.
620 – 605 =
1
15
|
15.
849 + 130 =
979
2
|
16.
405 + 505 =
910
2
|
|
17.
599 – 246 =
353
2
|
18.
703 – 33 =
670
2
|
19.
472 – 411 =
2
61
|
20.
687 + 270 =
957
2
|