Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
517 – 303 =
214
2
4
3
|
2.
816 + 22 =
4
3
2
838
|
3.
80 + 69 =
3
149
2
4
|
4.
637 – 280 =
3
357
2
4
|
|
5.
396 + 188 =
4
584
3
2
|
6.
169 + 428 =
3
2
597
4
|
7.
635 – 263 =
4
3
2
372
|
8.
476 – 357 =
119
3
2
4
|
|
9.
515 + 356 =
3
4
2
871
|
10.
312 + 202 =
3
514
2
4
|
11.
275 + 483 =
758
3
2
4
|
12.
352 – 94 =
3
258
2
4
|
|
13.
677 – 37 =
3
4
640
2
|
14.
594 – 219 =
2
3
4
375
|
15.
455 – 175 =
2
280
3
4
|
16.
737 + 153 =
4
890
2
3
|
|
17.
350 – 316 =
4
2
34
3
|
18.
582 – 259 =
3
4
2
323
|
19.
733 – 659 =
74
3
4
2
|
20.
266 + 687 =
4
2
953
3
|