Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
789 – 265 =
4
524
3
2
|
2.
855 – 578 =
2
277
3
4
|
3.
920 + 37 =
2
4
3
957
|
4.
679 + 313 =
2
4
992
3
|
|
5.
473 + 102 =
2
3
4
575
|
6.
723 + 225 =
2
4
948
3
|
7.
485 + 447 =
3
932
4
2
|
8.
37 + 111 =
4
3
2
148
|
|
9.
352 – 263 =
3
4
89
2
|
10.
403 – 354 =
3
2
4
49
|
11.
623 + 67 =
690
4
2
3
|
12.
236 + 759 =
995
2
4
3
|
|
13.
273 – 167 =
3
4
106
2
|
14.
449 – 226 =
3
2
4
223
|
15.
530 – 145 =
4
3
2
385
|
16.
333 + 381 =
2
4
3
714
|
|
17.
648 + 28 =
2
3
4
676
|
18.
584 – 223 =
4
3
361
2
|
19.
755 + 2 =
2
757
4
3
|
20.
341 – 315 =
2
3
26
4
|