Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
37 – 32 =
3
5
1
2
|
2.
428 + 308 =
2
736
3
4
|
3.
769 + 88 =
2
857
3
4
|
4.
425 + 34 =
2
4
3
459
|
|
5.
287 – 159 =
128
4
2
3
|
6.
863 + 41 =
4
2
3
904
|
7.
328 + 317 =
4
2
645
3
|
8.
121 + 664 =
785
4
2
3
|
|
9.
995 – 848 =
3
4
147
2
|
10.
87 + 687 =
4
2
774
3
|
11.
39 + 896 =
2
3
4
935
|
12.
513 + 29 =
2
3
542
4
|
|
13.
311 + 40 =
3
351
4
2
|
14.
219 – 5 =
214
3
4
2
|
15.
915 + 14 =
2
929
3
4
|
16.
793 + 137 =
4
3
930
2
|
|
17.
544 – 502 =
2
3
4
42
|
18.
77 + 323 =
400
3
2
4
|
19.
867 – 292 =
4
575
3
2
|
20.
522 – 27 =
3
495
4
2
|