Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
2 – 2 =
3
4
2
0
|
2.
717 – 572 =
2
145
4
3
|
3.
23 – 14 =
3
2
9
1
|
4.
774 – 273 =
501
4
2
3
|
|
5.
628 – 566 =
2
4
62
3
|
6.
463 + 429 =
2
3
892
4
|
7.
418 – 287 =
131
2
3
4
|
8.
219 + 376 =
3
4
2
595
|
|
9.
650 – 274 =
4
3
2
376
|
10.
739 – 647 =
3
2
92
4
|
11.
647 – 165 =
3
2
4
482
|
12.
439 + 276 =
2
715
4
3
|
|
13.
438 – 211 =
2
4
3
227
|
14.
64 + 606 =
2
3
4
670
|
15.
627 – 50 =
4
3
2
577
|
16.
307 + 518 =
3
4
2
825
|
|
17.
832 – 524 =
308
4
2
3
|
18.
723 + 275 =
998
4
2
3
|
19.
870 + 39 =
909
4
2
3
|
20.
551 + 116 =
2
667
3
4
|