Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
637 – 55 =
3
4
582
2
|
2.
214 – 91 =
4
2
3
123
|
3.
970 – 635 =
2
335
4
3
|
4.
577 + 130 =
2
4
707
3
|
|
5.
745 – 548 =
197
3
4
2
|
6.
505 – 499 =
2
1
3
6
|
7.
487 + 36 =
3
4
2
523
|
8.
755 – 341 =
4
2
3
414
|
|
9.
754 + 185 =
4
3
939
2
|
10.
708 – 434 =
3
274
2
4
|
11.
228 – 200 =
28
2
3
4
|
12.
258 + 308 =
2
3
566
4
|
|
13.
163 + 717 =
2
3
880
4
|
14.
417 – 101 =
2
316
4
3
|
15.
87 – 60 =
2
27
4
3
|
16.
620 + 247 =
3
867
2
4
|
|
17.
920 – 7 =
2
913
4
3
|
18.
255 + 340 =
2
595
4
3
|
19.
607 + 251 =
2
4
3
858
|
20.
608 – 606 =
1
3
2
4
|