Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
425 – 309 =
2
4
116
3
|
2.
570 – 508 =
2
3
62
4
|
3.
360 + 333 =
3
693
4
2
|
4.
341 – 10 =
331
2
3
4
|
|
5.
802 – 648 =
154
4
3
2
|
6.
583 + 111 =
694
3
4
2
|
7.
702 + 249 =
4
951
2
3
|
8.
98 + 518 =
3
4
616
2
|
|
9.
3 + 486 =
489
3
2
4
|
10.
889 + 74 =
963
2
3
4
|
11.
244 – 95 =
3
2
4
149
|
12.
496 + 464 =
2
3
4
960
|
|
13.
353 – 297 =
3
4
2
56
|
14.
345 – 68 =
3
2
277
4
|
15.
983 + 15 =
4
3
998
2
|
16.
805 + 70 =
875
2
4
3
|
|
17.
362 – 70 =
4
292
3
2
|
18.
987 – 942 =
3
45
4
2
|
19.
767 – 677 =
90
3
2
4
|
20.
143 – 38 =
3
105
4
2
|