Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
938 – 170 =
2
3
768
4
|
2.
838 – 768 =
3
70
4
2
|
3.
636 + 46 =
4
3
2
682
|
4.
293 – 138 =
2
4
3
155
|
|
5.
878 + 61 =
3
4
939
2
|
6.
918 – 31 =
3
4
887
2
|
7.
420 + 233 =
653
2
4
3
|
8.
424 – 377 =
3
47
4
2
|
|
9.
162 – 88 =
3
2
4
74
|
10.
777 + 56 =
4
833
2
3
|
11.
514 – 417 =
4
97
2
3
|
12.
893 – 508 =
4
385
3
2
|
|
13.
796 + 128 =
924
2
3
4
|
14.
401 – 43 =
358
2
3
4
|
15.
4 + 361 =
3
4
2
365
|
16.
282 + 403 =
685
4
2
3
|
|
17.
959 + 30 =
4
3
2
989
|
18.
801 – 415 =
2
4
386
3
|
19.
140 + 0 =
2
140
3
4
|
20.
614 – 37 =
3
577
2
4
|