Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
810 – 30 =
3
2
780
4
|
2.
273 – 91 =
182
4
3
2
|
3.
889 + 41 =
3
4
930
2
|
4.
224 – 189 =
3
35
4
2
|
|
5.
278 – 15 =
2
4
263
3
|
6.
419 + 95 =
514
3
2
4
|
7.
460 + 132 =
2
3
4
592
|
8.
14 + 706 =
2
3
720
4
|
|
9.
617 – 323 =
294
2
4
3
|
10.
205 – 101 =
104
4
3
2
|
11.
705 + 188 =
4
3
2
893
|
12.
634 + 313 =
3
2
4
947
|
|
13.
410 + 220 =
2
4
630
3
|
14.
273 + 83 =
2
356
3
4
|
15.
510 – 358 =
4
2
3
152
|
16.
186 + 251 =
2
4
3
437
|
|
17.
952 + 4 =
4
2
3
956
|
18.
1 – 1 =
4
3
2
0
|
19.
640 – 17 =
4
2
3
623
|
20.
630 – 32 =
3
2
598
4
|