Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
91 – 55 =
36
4
3
2
|
2.
272 – 41 =
4
231
2
3
|
3.
123 + 141 =
2
4
264
3
|
4.
589 + 87 =
3
2
676
4
|
|
5.
454 + 69 =
2
4
523
3
|
6.
992 – 484 =
4
3
508
2
|
7.
969 + 2 =
3
4
971
2
|
8.
11 – 8 =
1
4
2
3
|
|
9.
482 – 447 =
3
2
4
35
|
10.
854 + 22 =
4
3
2
876
|
11.
565 + 64 =
2
3
629
4
|
12.
848 – 459 =
389
3
2
4
|
|
13.
73 – 0 =
4
2
3
73
|
14.
332 + 177 =
509
4
3
2
|
15.
77 – 17 =
4
3
60
2
|
16.
174 – 172 =
3
2
1
4
|
|
17.
389 – 300 =
3
89
4
2
|
18.
269 – 19 =
2
4
250
3
|
19.
273 + 303 =
3
4
576
2
|
20.
797 + 87 =
4
884
3
2
|