Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
309 – 189 =
120
2
|
2.
510 – 509 =
2
1
|
3.
41 + 276 =
317
2
|
4.
912 – 602 =
2
310
|
|
5.
260 + 233 =
493
2
|
6.
599 – 117 =
482
2
|
7.
589 – 319 =
2
270
|
8.
870 – 320 =
550
2
|
|
9.
58 – 10 =
48
2
|
10.
197 + 698 =
895
2
|
11.
879 + 110 =
2
989
|
12.
966 – 404 =
2
562
|
|
13.
974 + 9 =
2
983
|
14.
811 – 637 =
174
2
|
15.
46 – 27 =
2
19
|
16.
164 + 99 =
263
2
|
|
17.
846 – 178 =
2
668
|
18.
14 + 472 =
2
486
|
19.
817 + 108 =
925
2
|
20.
327 + 425 =
2
752
|