Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
767 + 31 =
4
3
798
2
|
2.
140 + 374 =
3
2
4
514
|
3.
150 – 1 =
3
2
149
4
|
4.
914 + 62 =
2
3
976
4
|
|
5.
566 – 478 =
2
4
3
88
|
6.
540 + 32 =
3
572
2
4
|
7.
40 – 26 =
1
3
14
2
|
8.
897 + 84 =
2
3
4
981
|
|
9.
397 + 271 =
668
4
2
3
|
10.
239 + 250 =
489
3
2
4
|
11.
178 + 286 =
4
3
2
464
|
12.
609 + 64 =
673
2
4
3
|
|
13.
699 + 86 =
2
785
3
4
|
14.
51 – 51 =
2
0
3
4
|
15.
365 – 267 =
3
98
4
2
|
16.
540 – 403 =
2
137
4
3
|
|
17.
926 + 27 =
3
953
4
2
|
18.
777 + 191 =
3
968
4
2
|
19.
305 – 74 =
231
3
2
4
|
20.
278 – 165 =
113
4
2
3
|