Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
504 + 8 =
2
4
512
3
|
2.
733 – 309 =
424
2
4
3
|
3.
189 + 170 =
3
4
2
359
|
4.
537 – 344 =
4
2
193
3
|
|
5.
670 – 647 =
2
23
3
4
|
6.
75 + 260 =
3
2
4
335
|
7.
227 + 52 =
4
279
2
3
|
8.
645 – 212 =
433
2
4
3
|
|
9.
491 + 5 =
496
3
2
4
|
10.
69 + 529 =
598
2
3
4
|
11.
353 – 183 =
170
3
4
2
|
12.
216 + 279 =
3
4
2
495
|
|
13.
374 – 309 =
2
4
65
3
|
14.
172 – 23 =
149
2
3
4
|
15.
756 + 19 =
2
775
4
3
|
16.
751 – 451 =
3
300
2
4
|
|
17.
306 + 691 =
3
2
4
997
|
18.
766 – 426 =
2
340
4
3
|
19.
987 – 72 =
2
3
4
915
|
20.
939 + 41 =
3
2
980
4
|