Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
335 – 331 =
4
1
2
3
|
2.
163 – 72 =
91
2
3
4
|
3.
163 + 443 =
2
606
4
3
|
4.
72 + 573 =
645
2
3
4
|
|
5.
972 – 14 =
3
2
4
958
|
6.
513 + 174 =
687
4
3
2
|
7.
652 – 306 =
2
3
346
4
|
8.
849 + 40 =
889
3
2
4
|
|
9.
16 – 13 =
2
4
1
3
|
10.
61 – 40 =
21
4
3
2
|
11.
420 – 48 =
372
4
2
3
|
12.
834 – 788 =
4
2
3
46
|
|
13.
248 – 116 =
4
2
3
132
|
14.
696 – 237 =
3
459
4
2
|
15.
401 – 62 =
4
3
2
339
|
16.
307 – 42 =
265
2
3
4
|
|
17.
623 + 79 =
4
2
702
3
|
18.
234 + 730 =
964
4
3
2
|
19.
107 + 340 =
4
2
3
447
|
20.
228 + 114 =
4
3
2
342
|