Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
857 – 128 =
729
2
|
2.
684 + 20 =
2
704
|
3.
30 – 25 =
5
1
|
4.
529 – 113 =
416
2
|
|
5.
182 – 115 =
2
67
|
6.
724 – 366 =
358
2
|
7.
25 + 753 =
778
2
|
8.
648 + 34 =
2
682
|
|
9.
309 + 344 =
653
2
|
10.
358 + 127 =
485
2
|
11.
432 – 156 =
276
2
|
12.
612 + 240 =
2
852
|
|
13.
649 + 49 =
698
2
|
14.
157 – 5 =
152
2
|
15.
311 – 253 =
58
2
|
16.
501 – 455 =
46
2
|
|
17.
427 + 11 =
2
438
|
18.
345 + 370 =
715
2
|
19.
562 + 145 =
2
707
|
20.
27 + 483 =
510
2
|