Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
525 – 505 =
4
20
3
2
|
2.
814 + 172 =
4
2
3
986
|
3.
801 – 154 =
647
3
4
2
|
4.
486 + 266 =
3
752
2
4
|
|
5.
904 – 857 =
2
47
4
3
|
6.
785 – 306 =
4
479
2
3
|
7.
347 + 429 =
2
4
776
3
|
8.
908 + 47 =
2
4
3
955
|
|
9.
351 – 167 =
4
2
184
3
|
10.
655 + 252 =
3
4
907
2
|
11.
14 + 158 =
2
4
172
3
|
12.
707 – 155 =
4
2
3
552
|
|
13.
145 + 207 =
352
3
2
4
|
14.
1 – 0 =
2
4
1
3
|
15.
516 – 431 =
4
2
3
85
|
16.
550 – 358 =
2
4
192
3
|
|
17.
30 – 28 =
1
2
3
4
|
18.
461 + 174 =
635
2
3
4
|
19.
797 – 18 =
779
4
3
2
|
20.
846 – 638 =
208
2
3
4
|