Rekensommen met erbij en eraf tot 1.000
In de mix
|
1.
645 – 344 =
301
2
|
2.
248 + 283 =
2
531
|
3.
630 + 8 =
2
638
|
4.
689 + 68 =
2
757
|
|
5.
323 + 52 =
375
2
|
6.
366 – 227 =
139
2
|
7.
748 + 208 =
2
956
|
8.
870 – 386 =
484
2
|
|
9.
187 + 164 =
2
351
|
10.
667 – 439 =
228
2
|
11.
417 + 516 =
933
2
|
12.
690 – 30 =
660
2
|
|
13.
329 + 208 =
537
2
|
14.
608 – 331 =
277
2
|
15.
928 – 927 =
2
1
|
16.
984 + 10 =
2
994
|
|
17.
22 – 22 =
0
2
|
18.
248 + 287 =
535
2
|
19.
195 + 459 =
654
2
|
20.
623 – 433 =
2
190
|