Oefenen met erbij en eraf tot 1.000
In de mix
|
1.
766 – 477 =
2
3
289
4
|
2.
112 + 222 =
2
4
3
334
|
3.
501 + 28 =
3
4
2
529
|
4.
348 + 48 =
396
4
2
3
|
|
5.
745 + 139 =
884
3
4
2
|
6.
943 – 468 =
2
3
4
475
|
7.
435 + 74 =
2
3
509
4
|
8.
568 + 363 =
2
3
931
4
|
|
9.
89 – 0 =
3
4
89
2
|
10.
726 – 121 =
605
3
4
2
|
11.
279 + 660 =
2
3
4
939
|
12.
350 + 332 =
4
2
682
3
|
|
13.
38 + 10 =
3
2
4
48
|
14.
143 + 235 =
378
4
3
2
|
15.
974 – 780 =
2
4
194
3
|
16.
970 + 26 =
4
2
3
996
|
|
17.
8 – 6 =
1
3
2
4
|
18.
11 + 394 =
405
2
4
3
|
19.
601 + 248 =
2
3
849
4
|
20.
378 + 175 =
4
2
3
553
|