Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
2 + 988 =
990
3
4
2
|
2.
798 – 625 =
4
2
3
173
|
3.
812 – 81 =
3
2
4
731
|
4.
232 – 167 =
3
2
65
4
|
|
5.
610 – 555 =
2
4
55
3
|
6.
308 + 258 =
2
3
4
566
|
7.
34 + 188 =
222
4
2
3
|
8.
837 – 37 =
4
3
800
2
|
|
9.
336 + 627 =
963
4
3
2
|
10.
283 + 559 =
842
2
3
4
|
11.
892 + 58 =
4
2
3
950
|
12.
713 – 339 =
4
2
374
3
|
|
13.
417 – 403 =
1
3
2
14
|
14.
361 – 347 =
2
3
14
1
|
15.
426 – 412 =
14
2
3
1
|
16.
469 + 306 =
4
2
775
3
|
|
17.
296 + 59 =
2
355
4
3
|
18.
844 – 417 =
2
4
3
427
|
19.
287 + 147 =
434
2
3
4
|
20.
711 – 580 =
4
131
3
2
|